From b2ff7641a538a60a9dec619cb22388e50a9b3478 Mon Sep 17 00:00:00 2001
From: tobtoht <tob@featherwallet.org>
Date: Sun, 2 Jul 2023 21:00:24 +0200
Subject: [PATCH] Bootstrappable Builds

---
 .github/workflows/gitian.yml                  |  49 --
 .github/workflows/guix.yml                    | 104 +++
 .gitignore                                    |   6 +-
 CMakeLists.txt                                |   2 +-
 README.md                                     |   6 +-
 contrib/depends/Makefile                      |  11 +-
 contrib/depends/funcs.mk                      |  38 +-
 contrib/depends/hosts/darwin.mk               |  62 +-
 contrib/depends/hosts/freebsd.mk              |  13 +-
 contrib/depends/hosts/linux.mk                |   2 +
 contrib/depends/packages/android_ndk.mk       |   7 +-
 contrib/depends/packages/boost.mk             |  12 +-
 contrib/depends/packages/darwin_sdk.mk        |   4 +
 contrib/depends/packages/freebsd_base.mk      |  11 +-
 contrib/depends/packages/native_cctools.mk    |  10 +-
 contrib/depends/packages/native_clang.mk      |  28 -
 contrib/depends/packages/native_libtapi.mk    |  18 +-
 contrib/depends/packages/packages.mk          |   2 +-
 .../depends/patches/android_ndk/fix_env.patch |  30 +
 .../depends/patches/boost/fix_coalesce.patch  |  22 +
 contrib/depends/toolchain.cmake.in            |  11 +-
 contrib/gitian/DOCKRUN.md                     | 114 ---
 contrib/gitian/README.md                      | 272 ------
 contrib/gitian/dockrun.sh                     | 128 ---
 contrib/gitian/gitian-android.yml             | 131 ---
 contrib/gitian/gitian-build.py                | 203 -----
 contrib/gitian/gitian-freebsd.yml             | 128 ---
 contrib/gitian/gitian-linux.yml               | 180 ----
 contrib/gitian/gitian-osx.yml                 | 119 ---
 contrib/gitian/gitian-win.yml                 | 136 ---
 contrib/guix/INSTALL.md                       | 798 ++++++++++++++++++
 contrib/guix/README.md                        | 345 ++++++++
 contrib/guix/guix-attest                      | 197 +++++
 contrib/guix/guix-build                       | 467 ++++++++++
 contrib/guix/guix-clean                       |  83 ++
 contrib/guix/guix-verify                      | 124 +++
 contrib/guix/libexec/build.sh                 | 414 +++++++++
 contrib/guix/libexec/prelude.bash             | 101 +++
 contrib/guix/manifest.scm                     | 312 +++++++
 .../guix/patches/gcc-remap-guix-store.patch   |  20 +
 .../guix/patches/glibc-2.27-guix-prefix.patch |  22 +
 .../guix/patches/glibc-2.27-no-librt.patch    |  53 ++
 ...as_include-to-include-asm-syscalls.h.patch |  23 +
 .../winpthreads-remap-guix-store.patch        |  17 +
 contrib/shell/git-utils.bash                  |  14 +
 docs/RELEASE_CHECKLIST.md                     |   2 -
 46 files changed, 3286 insertions(+), 1565 deletions(-)
 delete mode 100644 .github/workflows/gitian.yml
 create mode 100644 .github/workflows/guix.yml
 delete mode 100644 contrib/depends/packages/native_clang.mk
 create mode 100644 contrib/depends/patches/android_ndk/fix_env.patch
 create mode 100644 contrib/depends/patches/boost/fix_coalesce.patch
 delete mode 100644 contrib/gitian/DOCKRUN.md
 delete mode 100644 contrib/gitian/README.md
 delete mode 100755 contrib/gitian/dockrun.sh
 delete mode 100644 contrib/gitian/gitian-android.yml
 delete mode 100755 contrib/gitian/gitian-build.py
 delete mode 100644 contrib/gitian/gitian-freebsd.yml
 delete mode 100644 contrib/gitian/gitian-linux.yml
 delete mode 100644 contrib/gitian/gitian-osx.yml
 delete mode 100644 contrib/gitian/gitian-win.yml
 create mode 100644 contrib/guix/INSTALL.md
 create mode 100644 contrib/guix/README.md
 create mode 100755 contrib/guix/guix-attest
 create mode 100755 contrib/guix/guix-build
 create mode 100755 contrib/guix/guix-clean
 create mode 100755 contrib/guix/guix-verify
 create mode 100644 contrib/guix/libexec/build.sh
 create mode 100644 contrib/guix/libexec/prelude.bash
 create mode 100644 contrib/guix/manifest.scm
 create mode 100644 contrib/guix/patches/gcc-remap-guix-store.patch
 create mode 100644 contrib/guix/patches/glibc-2.27-guix-prefix.patch
 create mode 100644 contrib/guix/patches/glibc-2.27-no-librt.patch
 create mode 100644 contrib/guix/patches/glibc-2.27-riscv64-Use-__has_include-to-include-asm-syscalls.h.patch
 create mode 100644 contrib/guix/patches/winpthreads-remap-guix-store.patch
 create mode 100644 contrib/shell/git-utils.bash

diff --git a/.github/workflows/gitian.yml b/.github/workflows/gitian.yml
deleted file mode 100644
index db9735ac3..000000000
--- a/.github/workflows/gitian.yml
+++ /dev/null
@@ -1,49 +0,0 @@
-name: ci/gh-actions/gitian
-
-on:
-  push:
-    tags:
-      - '*'
-
-jobs:
-  build-gitian:
-    runs-on: ubuntu-20.04
-    strategy:
-      fail-fast: false
-      matrix:
-        operating-system:
-          - name: "Linux"
-            option: "l"
-          - name: "Windows"
-            option: "w"
-          - name: "Android"
-            option: "a"
-          - name: "FreeBSD"
-            option: "f"
-          - name: "macOS"
-            option: "m"
-    name: ${{ matrix.operating-system.name }}
-    steps:
-    - name: prepare
-      run: |
-        sudo apt update
-        curl -O https://raw.githubusercontent.com/monero-project/monero/${{ github.ref_name }}/contrib/gitian/gitian-build.py
-        chmod +x gitian-build.py
-    - name: setup
-      run: |
-        ./gitian-build.py --setup --docker github-actions ${{ github.ref_name }}
-    - name: build
-      run: |
-        ./gitian-build.py --docker --detach-sign --no-commit --build -j 3 -o ${{ matrix.operating-system.option }} github-actions ${{ github.ref_name }}
-    - name: post build
-      run: |
-        cd out/${{ github.ref_name }}
-        shasum -a256 *
-        echo \`\`\` >> $GITHUB_STEP_SUMMARY
-        shasum -a256 * >> $GITHUB_STEP_SUMMARY
-        echo \`\`\` >> $GITHUB_STEP_SUMMARY
-    - uses: actions/upload-artifact@v4
-      with:
-        name: ${{ matrix.operating-system.name }}
-        path: |
-          out/${{ github.ref_name }}/*
diff --git a/.github/workflows/guix.yml b/.github/workflows/guix.yml
new file mode 100644
index 000000000..47e2eccf7
--- /dev/null
+++ b/.github/workflows/guix.yml
@@ -0,0 +1,104 @@
+name: ci/gh-actions/guix
+
+on:
+  push:
+    paths:
+      - 'contrib/depends/**'
+      - 'contrib/guix/**'
+      - '!contrib/**.md'
+      - '.github/workflows/guix.yml'
+  pull_request:
+    paths:
+      - 'contrib/depends/**'
+      - 'contrib/guix/**'
+      - '!contrib/**.md'
+      - '.github/workflows/guix.yml'
+
+jobs:
+  cache-sources:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: depends sources cache
+        id: cache
+        uses: actions/cache@v4
+        with:
+          path: contrib/depends/sources
+          key: sources-${{ hashFiles('contrib/depends/packages/*') }}
+      - name: download depends sources
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: make -C contrib/depends download
+
+  build-guix:
+    runs-on: ubuntu-24.04
+    needs: [cache-sources]
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain:
+          - target: "x86_64-linux-gnu"
+          - target: "aarch64-linux-gnu"
+          - target: "arm-linux-gnueabihf"
+          - target: "riscv64-linux-gnu"
+          - target: "i686-linux-gnu"
+          - target: "x86_64-w64-mingw32"
+          - target: "x86_64-unknown-freebsd"
+          - target: "x86_64-apple-darwin"
+          - target: "aarch64-apple-darwin"
+          - target: "aarch64-linux-android"
+          - target: "arm-linux-androideabi"
+
+    name: ${{ matrix.toolchain.target }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: recursive
+      - name: remove bundled packages
+        # This is faster than rm -rf
+        run: |
+          sudo mkdir /empty
+          sudo rsync -a --delete /empty/ /usr/local
+      - name: depends sources cache
+        uses: actions/cache/restore@v4
+        with:
+          path: contrib/depends/sources
+          key: sources-${{ hashFiles('contrib/depends/packages/*') }}
+      - name: install dependencies
+        run: sudo apt update; sudo apt -y install guix git ca-certificates
+      - name: apparmor workaround
+        # https://bugs.launchpad.net/ubuntu/+source/guix/+bug/2064115
+        run: |
+          sudo tee /etc/apparmor.d/guix << EOF
+          abi <abi/4.0>,
+          include <tunables/global>
+          profile guix /usr/bin/guix flags=(unconfined) {
+            userns,
+            include if exists <local/guix>
+          }
+          EOF
+          sudo /etc/init.d/apparmor reload
+          sudo aa-enforce guix || true
+          sudo apt purge apparmor
+      - name: build
+        run: SUBSTITUTE_URLS='http://bordeaux.guix.gnu.org' HOSTS="${{ matrix.toolchain.target }}" ./contrib/guix/guix-build
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.toolchain.target }}
+          path: |
+            guix/guix-build-*/output/${{ matrix.toolchain.target }}/*
+            guix/guix-build-*/logs/${{ matrix.toolchain.target }}/*
+
+  bundle-logs:
+    runs-on: ubuntu-24.04
+    needs: [build-guix]
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          merge-multiple: true
+      - uses: actions/upload-artifact@v4
+        with:
+          name: "logs"
+          path: '**/logs/**'
diff --git a/.gitignore b/.gitignore
index 9f62575e5..7da4837cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,10 +25,8 @@ miniupnpcstrings.h
 version/
 ClangBuildAnalyzerSession.txt
 
-# gitian
-contrib/gitian/builder/
-contrib/gitian/docker/
-contrib/gitian/sigs/
+# guix
+/guix
 
 # Created by https://www.gitignore.io
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6ffdaeb55..c96d3ab04 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1113,7 +1113,7 @@ if(MINGW)
 elseif(APPLE OR OPENBSD OR ANDROID)
   set(EXTRA_LIBRARIES "")
 elseif(FREEBSD)
-  set(EXTRA_LIBRARIES execinfo)
+  set(EXTRA_LIBRARIES execinfo elf)
 elseif(DRAGONFLY)
   find_library(COMPAT compat)
   set(EXTRA_LIBRARIES execinfo ${COMPAT})
diff --git a/README.md b/README.md
index 5bde48dd9..b33b19004 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ Portions Copyright (c) 2012-2013 The Cryptonote developers.
   - [Release staging schedule and protocol](#release-staging-schedule-and-protocol)
   - [Compiling Monero from source](#compiling-monero-from-source)
     - [Dependencies](#dependencies)
-    - [Gitian builds](#gitian-builds)
+    - [Guix builds](#guix-builds)
   - [Internationalization](#Internationalization)
   - [Using Tor](#using-tor)
   - [Pruning](#Pruning)
@@ -599,9 +599,9 @@ USE_DEVICE_TREZOR=OFF make release
 
 For more information, please check out Trezor [src/device_trezor/README.md](src/device_trezor/README.md).
 
-### Gitian builds
+### Guix builds
 
-See [contrib/gitian/README.md](contrib/gitian/README.md).
+See [contrib/guix/README.md](contrib/guix/README.md).
 
 ## Installing Monero from a package
 
diff --git a/contrib/depends/Makefile b/contrib/depends/Makefile
index f612dbffb..a86281a55 100644
--- a/contrib/depends/Makefile
+++ b/contrib/depends/Makefile
@@ -85,6 +85,7 @@ include builders/$(build_os).mk
 include builders/default.mk
 include packages/packages.mk
 
+ifeq ($(GUIX_ENVIRONMENT),)
 build_id_string:=$(BUILD_ID_SALT)
 build_id_string+=$(shell $(build_CC) --version 2>/dev/null)
 build_id_string+=$(shell $(build_AR) --version 2>/dev/null)
@@ -98,6 +99,10 @@ $(host_arch)_$(host_os)_id_string+=$(shell $(host_AR) --version 2>/dev/null)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_CXX) --version 2>/dev/null)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_RANLIB) --version 2>/dev/null)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_STRIP) --version 2>/dev/null)
+else
+build_id_string:=$(realpath $(GUIX_ENVIRONMENT))
+$(host_arch)_$(host_os)_id_string:=$(realpath $(GUIX_ENVIRONMENT))
+endif
 
 packages += $($(host_arch)_$(host_os)_packages) $($(host_os)_packages)
 native_packages += $($(host_arch)_$(host_os)_native_packages) $($(host_os)_native_packages)
@@ -111,7 +116,7 @@ $(host_arch)_$(host_os)_native_toolchain?=$($(host_os)_native_toolchain)
 include funcs.mk
 
 toolchain_path=$($($(host_arch)_$(host_os)_native_toolchain)_prefixbin)
-final_build_id_long+=$(shell $(build_SHA256SUM) toolchain.cmake.in)
+final_build_id_long+=:[sha256sum]:$(shell $(build_SHA256SUM) toolchain.cmake.in)
 final_build_id+=$(shell echo -n "$(final_build_id_long)" | $(build_SHA256SUM) | cut -c-$(HASH_LENGTH))
 $(host_prefix)/.stamp_$(final_build_id): $(native_packages) $(packages)
 	$(AT)rm -rf $(@D)
@@ -124,8 +129,8 @@ $(host_prefix)/.stamp_$(final_build_id): $(native_packages) $(packages)
 $(host_prefix)/share/toolchain.cmake : toolchain.cmake.in $(host_prefix)/.stamp_$(final_build_id)
 	$(AT)@mkdir -p $(@D)
 	$(AT)sed -e 's|@HOST@|$(host)|' \
-            -e 's|@CC@|$(toolchain_path)$(host_CC)|' \
-            -e 's|@CXX@|$(toolchain_path)$(host_CXX)|' \
+            -e 's|@CC@|$(host_CC)|' \
+            -e 's|@CXX@|$(host_CXX)|' \
             -e 's|@AR@|$(toolchain_path)$(host_AR)|' \
             -e 's|@RANLIB@|$(toolchain_path)$(host_RANLIB)|' \
             -e 's|@NM@|$(toolchain_path)$(host_NM)|' \
diff --git a/contrib/depends/funcs.mk b/contrib/depends/funcs.mk
index e08669c98..be928c192 100644
--- a/contrib/depends/funcs.mk
+++ b/contrib/depends/funcs.mk
@@ -1,18 +1,25 @@
 define int_vars
 #Set defaults for vars which may be overridden per-package
-$(1)_cc=$($($(1)_type)_CC)
-$(1)_cxx=$($($(1)_type)_CXX)
-$(1)_objc=$($($(1)_type)_OBJC)
-$(1)_objcxx=$($($(1)_type)_OBJCXX)
-$(1)_ar=$($($(1)_type)_AR)
-$(1)_ranlib=$($($(1)_type)_RANLIB)
-$(1)_libtool=$($($(1)_type)_LIBTOOL)
-$(1)_nm=$($($(1)_type)_NM)
-$(1)_cflags=$($($(1)_type)_CFLAGS) $($($(1)_type)_$(release_type)_CFLAGS)
-$(1)_cxxflags=$($($(1)_type)_CXXFLAGS) $($($(1)_type)_$(release_type)_CXXFLAGS)
-$(1)_arflags=$($($(1)_type)_ARFLAGS) $($($(1)_type)_$(release_type)_ARFLAGS)
-$(1)_ldflags=$($($(1)_type)_LDFLAGS) $($($(1)_type)_$(release_type)_LDFLAGS) -L$($($(1)_type)_prefix)/lib
-$(1)_cppflags=$($($(1)_type)_CPPFLAGS) $($($(1)_type)_$(release_type)_CPPFLAGS) -I$($($(1)_type)_prefix)/include
+$(1)_cc=$$($$($(1)_type)_CC)
+$(1)_cxx=$$($$($(1)_type)_CXX)
+$(1)_objc=$$($$($(1)_type)_OBJC)
+$(1)_objcxx=$$($$($(1)_type)_OBJCXX)
+$(1)_ar=$$($$($(1)_type)_AR)
+$(1)_ranlib=$$($$($(1)_type)_RANLIB)
+$(1)_libtool=$$($$($(1)_type)_LIBTOOL)
+$(1)_nm=$$($$($(1)_type)_NM)
+$(1)_cflags=$$($$($(1)_type)_CFLAGS) \
+            $$($$($(1)_type)_$$(release_type)_CFLAGS)
+$(1)_cxxflags=$$($$($(1)_type)_CXXFLAGS) \
+              $$($$($(1)_type)_$$(release_type)_CXXFLAGS)
+$(1)_arflags=$$($$($(1)_type)_ARFLAGS) \
+             $$($$($(1)_type)_$(release_type)_ARFLAGS)
+$(1)_ldflags=$$($$($(1)_type)_LDFLAGS) \
+             $$($$($(1)_type)_$$(release_type)_LDFLAGS) \
+             -L$$($($(1)_type)_prefix)/lib
+$(1)_cppflags=$$($$($(1)_type)_CPPFLAGS) \
+              $$($$($(1)_type)_$$(release_type)_CPPFLAGS) \
+              -I$$($$($(1)_type)_prefix)/include
 $(1)_recipe_hash:=
 endef
 
@@ -37,6 +44,7 @@ endef
 
 define int_get_build_recipe_hash
 $(eval $(1)_all_file_checksums:=$(shell $(build_SHA256SUM) $(meta_depends) packages/$(1).mk $(addprefix $(PATCHES_PATH)/$(1)/,$($(1)_patches)) | cut -d" " -f1))
+final_build_id_long+=:[$(1)_all_file_checksums]$(foreach checksum,$($(1)_all_file_checksums),$(shell echo ":$(checksum)")):
 $(eval $(1)_recipe_hash:=$(shell echo -n "$($(1)_all_file_checksums)" | $(build_SHA256SUM) | cut -d" " -f1))
 endef
 
@@ -46,7 +54,7 @@ $(eval $(1)_all_dependencies:=$(call int_get_all_dependencies,$(1),$($($(1)_type
 $(foreach dep,$($(1)_all_dependencies),$(eval $(1)_build_id_deps+=$(dep)-$($(dep)_version)-$($(dep)_recipe_hash)))
 $(eval $(1)_build_id_long:=$(1)-$($(1)_version)-$($(1)_recipe_hash)-$(release_type) $($(1)_build_id_deps) $($($(1)_type)_id_string))
 $(eval $(1)_build_id:=$(shell echo -n "$($(1)_build_id_long)" | $(build_SHA256SUM) | cut -c-$(HASH_LENGTH)))
-final_build_id_long+=$($(package)_build_id_long)
+final_build_id_long+=:[recipe]:$(1)-$($(1)_version)-$($(1)_recipe_hash)-$(release_type):[deps]$(foreach dep,$($(1)_build_id_deps),$(shell echo ":$(dep)")):[$($(1)_type)_id]:$($($(1)_type)_id_string):
 
 #compute package-specific paths
 $(1)_build_subdir?=.
@@ -267,4 +275,4 @@ $(foreach package,$(all_packages),$(eval $(call int_config_attach_build_config,$
 $(foreach package,$(all_packages),$(eval $(call int_add_cmds,$(package))))
 
 #special exception: if a toolchain package exists, all non-native packages depend on it
-$(foreach package,$(packages),$(eval $($(package)_unpacked): |$($($(host_arch)_$(host_os)_native_toolchain)_cached) ))
+$(foreach package,$(packages),$(eval $($(package)_extracted): |$($($(host_arch)_$(host_os)_native_toolchain)_cached) ))
diff --git a/contrib/depends/hosts/darwin.mk b/contrib/depends/hosts/darwin.mk
index 9a96e2601..58ff5dc32 100644
--- a/contrib/depends/hosts/darwin.mk
+++ b/contrib/depends/hosts/darwin.mk
@@ -1,23 +1,65 @@
 OSX_MIN_VERSION=10.13
+OSX_SDK_VERSION=11.0
+XCODE_VERSION=12.2
+XCODE_BUILD_ID=12B45b
 LD64_VERSION=609
-ifeq (aarch64, $(host_arch))
-CC_target=arm64-apple-$(host_os)
-else
-CC_target=$(host)
-endif
-darwin_CC=clang -target $(CC_target) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(host_prefix)/native/SDK/ -iwithsysroot/usr/include -iframeworkwithsysroot/System/Library/Frameworks -mlinker-version=$(LD64_VERSION) -B$(host_prefix)/native/bin/$(host)-
-darwin_CXX=clang++ -target $(CC_target) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(host_prefix)/native/SDK/ -iwithsysroot/usr/include/c++/v1 -iwithsysroot/usr/include -iframeworkwithsysroot/System/Library/Frameworks -mlinker-version=$(LD64_VERSION) -stdlib=libc++ -B$(host_prefix)/native/bin/$(host)-
+
+OSX_SDK=$(host_prefix)/native/SDK
+
+darwin_native_toolchain=darwin_sdk native_cctools
+
+clang_prog=$(shell $(SHELL) $(.SHELLFLAGS) "command -v clang")
+clangxx_prog=$(shell $(SHELL) $(.SHELLFLAGS) "command -v clang++")
+
+# Flag explanations:
+#
+#     -mlinker-version
+#
+#         Ensures that modern linker features are enabled. See here for more
+#         details: https://github.com/bitcoin/bitcoin/pull/19407.
+#
+#     -B$(build_prefix)/bin
+#
+#         Explicitly point to our binaries (e.g. cctools) so that they are
+#         ensured to be found and preferred over other possibilities.
+#
+#     -isysroot$(OSX_SDK) -nostdlibinc
+#
+#         Disable default include paths built into the compiler as well as
+#         those normally included for libc and libc++. The only path that
+#         remains implicitly is the clang resource dir.
+#
+#     -iwithsysroot / -iframeworkwithsysroot
+#
+#         Adds the desired paths from the SDK
+#
+
+darwin_CC=env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH \
+              -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH \
+              -u LIBRARY_PATH \
+            $(clang_prog) --target=$(host) -mmacosx-version-min=$(OSX_MIN_VERSION) \
+              -B$(build_prefix)/bin -mlinker-version=$(LD64_VERSION) \
+              -isysroot$(OSX_SDK) \
+              -isysroot$(OSX_SDK) -nostdlibinc \
+              -iwithsysroot/usr/include -iframeworkwithsysroot/System/Library/Frameworks
+
+darwin_CXX=env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH \
+               -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH \
+               -u LIBRARY_PATH \
+             $(clangxx_prog) --target=$(host) -mmacosx-version-min=$(OSX_MIN_VERSION) \
+               -B$(build_prefix)/bin -mlinker-version=$(LD64_VERSION) \
+               -isysroot$(OSX_SDK) -nostdlibinc \
+               -iwithsysroot/usr/include/c++/v1 \
+               -iwithsysroot/usr/include -iframeworkwithsysroot/System/Library/Frameworks
 
 darwin_CFLAGS=-pipe
 darwin_CXXFLAGS=$(darwin_CFLAGS)
 darwin_ARFLAGS=cr
 
-darwin_release_CFLAGS=-O1
+darwin_release_CFLAGS=-O2
 darwin_release_CXXFLAGS=$(darwin_release_CFLAGS)
 
 darwin_debug_CFLAGS=-O1
 darwin_debug_CXXFLAGS=$(darwin_debug_CFLAGS)
 
-darwin_native_toolchain=native_cctools darwin_sdk
-
 darwin_cmake_system=Darwin
diff --git a/contrib/depends/hosts/freebsd.mk b/contrib/depends/hosts/freebsd.mk
index d3c6c6149..aeaccbf27 100644
--- a/contrib/depends/hosts/freebsd.mk
+++ b/contrib/depends/hosts/freebsd.mk
@@ -1,5 +1,14 @@
-freebsd_CC=clang-8
-freebsd_CXX=clang++-8
+clang_prog=$(shell $(SHELL) $(.SHELLFLAGS) "command -v clang")
+clangxx_prog=$(shell $(SHELL) $(.SHELLFLAGS) "command -v clang++")
+
+freebsd_CC=env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH \
+               -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH \
+               -u LIBRARY_PATH $(clang_prog) --target=$(host) --sysroot=$(host_prefix)/native -iwithsysroot/usr/include
+freebsd_CXX=env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH \
+                -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH \
+                -u LIBRARY_PATH $(clangxx_prog) --target=$(host) -stdlib=libc++ --sysroot=$(host_prefix)/native \
+                -iwithsysroot/usr/include/c++/v1 -iwithsysroot/usr/include
+
 freebsd_AR=ar
 freebsd_RANLIB=ranlib
 freebsd_NM=nm
diff --git a/contrib/depends/hosts/linux.mk b/contrib/depends/hosts/linux.mk
index 0f9379f4a..ba0c4c302 100644
--- a/contrib/depends/hosts/linux.mk
+++ b/contrib/depends/hosts/linux.mk
@@ -10,6 +10,7 @@ linux_debug_CXXFLAGS=$(linux_debug_CFLAGS)
 
 linux_debug_CPPFLAGS=-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC
 
+ifeq ($(GUIX_ENVIRONMENT),)
 ifeq (86,$(findstring 86,$(build_arch)))
 i686_linux_CC=gcc -m32
 i686_linux_CXX=g++ -m32
@@ -30,5 +31,6 @@ i686_linux_CXX=$(default_host_CXX) -m32
 x86_64_linux_CC=$(default_host_CC) -m64
 x86_64_linux_CXX=$(default_host_CXX) -m64
 endif
+endif
 
 linux_cmake_system=Linux
diff --git a/contrib/depends/packages/android_ndk.mk b/contrib/depends/packages/android_ndk.mk
index 65fa89de6..e32e47739 100644
--- a/contrib/depends/packages/android_ndk.mk
+++ b/contrib/depends/packages/android_ndk.mk
@@ -3,7 +3,7 @@ $(package)_version=18b
 $(package)_download_path=https://dl.google.com/android/repository/
 $(package)_file_name=android-ndk-r$($(package)_version)-linux-x86_64.zip
 $(package)_sha256_hash=4f61cbe4bbf6406aa5ef2ae871def78010eed6271af72de83f8bd0b07a9fd3fd
-$(package)_patches=api_definition.patch
+$(package)_patches=api_definition.patch fix_env.patch
 
 define $(package)_set_vars
 $(package)_config_opts_arm=--arch arm
@@ -17,11 +17,12 @@ endef
 
 define $(package)_preprocess_cmds
   cd android-ndk-r$($(package)_version) && \
-  patch -p1 < $($(package)_patch_dir)/api_definition.patch
+  patch -p1 < $($(package)_patch_dir)/api_definition.patch && \
+  patch -p1 < $($(package)_patch_dir)/fix_env.patch
 endef
 
 define $(package)_stage_cmds
-  android-ndk-r$($(package)_version)/build/tools/make_standalone_toolchain.py --api 21 \
+  python3 android-ndk-r$($(package)_version)/build/tools/make_standalone_toolchain.py --api 21 \
     --install-dir $(build_prefix) --stl=libc++ $($(package)_config_opts) &&\
   mv $(build_prefix) $($(package)_staging_dir)/$(host_prefix)
 endef
diff --git a/contrib/depends/packages/boost.mk b/contrib/depends/packages/boost.mk
index d81bca973..3f7fba1f1 100644
--- a/contrib/depends/packages/boost.mk
+++ b/contrib/depends/packages/boost.mk
@@ -1,9 +1,9 @@
-package=boost                                                                                                                                                                                                                      
+package=boost
 $(package)_version=1_64_0
 $(package)_download_path=https://downloads.sourceforge.net/project/boost/boost/1.64.0/
 $(package)_file_name=$(package)_$($(package)_version).tar.bz2
 $(package)_sha256_hash=7bcc5caace97baa948931d712ea5f37038dbb1c5d89b43ad4def4ed7cb683332
-$(package)_patches=fix_aroptions.patch fix_arm_arch.patch
+$(package)_patches=fix_aroptions.patch fix_arm_arch.patch fix_coalesce.patch
 
 define $(package)_set_vars
 $(package)_config_opts_release=variant=release
@@ -23,14 +23,16 @@ $(package)_toolset_darwin=darwin
 $(package)_archiver_darwin=$($(package)_libtool)
 $(package)_config_libraries_$(host_os)="chrono,filesystem,program_options,system,thread,test,date_time,regex,serialization"
 $(package)_config_libraries_mingw32="chrono,filesystem,program_options,system,thread,test,date_time,regex,serialization,locale"
-$(package)_cxxflags=-std=c++11
-$(package)_cxxflags_linux=-fPIC
-$(package)_cxxflags_freebsd=-fPIC
+$(package)_cxxflags+=-std=c++11
+$(package)_cxxflags_linux+=-fPIC
+$(package)_cxxflags_freebsd+=-fPIC
+$(package)_cxxflags_darwin+=-ffile-prefix-map=$($(package)_extract_dir)=/usr
 endef
 
 define $(package)_preprocess_cmds
   patch -p1 < $($(package)_patch_dir)/fix_aroptions.patch &&\
   patch -p1 < $($(package)_patch_dir)/fix_arm_arch.patch &&\
+  patch -p1 < $($(package)_patch_dir)/fix_coalesce.patch &&\
   echo "using $(boost_toolset_$(host_os)) : : $($(package)_cxx) : <cxxflags>\"$($(package)_cxxflags) $($(package)_cppflags)\" <linkflags>\"$($(package)_ldflags)\" <archiver>\"$(boost_archiver_$(host_os))\" <arflags>\"$($(package)_arflags)\" <striper>\"$(host_STRIP)\"  <ranlib>\"$(host_RANLIB)\" <rc>\"$(host_WINDRES)\" : ;" > user-config.jam
 endef
 
diff --git a/contrib/depends/packages/darwin_sdk.mk b/contrib/depends/packages/darwin_sdk.mk
index 3355dcf3a..388726220 100644
--- a/contrib/depends/packages/darwin_sdk.mk
+++ b/contrib/depends/packages/darwin_sdk.mk
@@ -4,7 +4,11 @@ $(package)_download_path=https://bitcoincore.org/depends-sources/sdks
 $(package)_file_name=Xcode-12.2-12B45b-extracted-SDK-with-libcxx-headers.tar.gz
 $(package)_sha256_hash=df75d30ecafc429e905134333aeae56ac65fac67cb4182622398fd717df77619
 
+# Prevent clang from including readline headers from the SDK. We statically link
+# our own version of readline.
+
 define $(package)_stage_cmds
   mkdir -p $($(package)_staging_dir)/$(host_prefix)/native/SDK &&\
+  rm -rf usr/include/readline && \
   mv * $($(package)_staging_dir)/$(host_prefix)/native/SDK
 endef
diff --git a/contrib/depends/packages/freebsd_base.mk b/contrib/depends/packages/freebsd_base.mk
index ad9975f8d..612a22aa6 100644
--- a/contrib/depends/packages/freebsd_base.mk
+++ b/contrib/depends/packages/freebsd_base.mk
@@ -10,14 +10,11 @@ define $(package)_extract_cmds
   tar xf $($(1)_source_dir)/$($(package)_file_name) ./lib/ ./usr/lib/ ./usr/include/
 endef
 
-define $(package)_build_cmds
-  mkdir bin &&\
-  echo "#!/bin/sh\n\nexec /usr/bin/clang-8 -target x86_64-unknown-freebsd$($(package)_version) --sysroot=$(host_prefix)/native $$$$""@" > bin/clang-8 &&\
-  echo "#!/bin/sh\n\nexec /usr/bin/clang++-8 -target x86_64-unknown-freebsd$($(package)_version) --sysroot=$(host_prefix)/native $$$$""@" > bin/clang++-8 &&\
-  chmod 755 bin/*
-endef
+# Prevent clang from including OpenSSL headers from the system base. We
+# statically link our own version of OpenSSL.
 
 define $(package)_stage_cmds
   mkdir $($(package)_staging_dir)/$(host_prefix)/native &&\
-  mv bin lib usr $($(package)_staging_dir)/$(host_prefix)/native
+  rm -rf usr/include/openssl &&\
+  mv lib usr $($(package)_staging_dir)/$(host_prefix)/native
 endef
diff --git a/contrib/depends/packages/native_cctools.mk b/contrib/depends/packages/native_cctools.mk
index 8c1ea4c62..a019b1649 100644
--- a/contrib/depends/packages/native_cctools.mk
+++ b/contrib/depends/packages/native_cctools.mk
@@ -5,14 +5,18 @@ $(package)_download_file=$($(package)_version).tar.gz
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
 $(package)_sha256_hash=70a7189418c2086d20c299c5d59250cf5940782c778892ccc899c66516ed240e
 $(package)_build_subdir=cctools
-$(package)_dependencies=native_clang native_libtapi
 $(package)_patches=no-build-date.patch
+$(package)_dependencies=native_libtapi
 
 define $(package)_set_vars
 $(package)_config_opts=--target=$(host) --disable-lto-support --with-libtapi=$(host_prefix)
 $(package)_ldflags+=-Wl,-rpath=\\$$$$$$$$\$$$$$$$$ORIGIN/../lib
-$(package)_cc=$(host_prefix)/native/bin/clang
-$(package)_cxx=$(host_prefix)/native/bin/clang++
+$(package)_cc=$(clang_prog)
+$(package)_cxx=$(clangxx_prog)
+endef
+
+define $(package)_preprocess_cmds
+  cp -f $(BASEDIR)/config.guess $(BASEDIR)/config.sub cctools
 endef
 
 define $(package)_preprocess_cmds
diff --git a/contrib/depends/packages/native_clang.mk b/contrib/depends/packages/native_clang.mk
deleted file mode 100644
index 4ff21ada0..000000000
--- a/contrib/depends/packages/native_clang.mk
+++ /dev/null
@@ -1,28 +0,0 @@
-package=native_clang
-$(package)_version=9.0.0
-$(package)_download_path=https://releases.llvm.org/$($(package)_version)
-$(package)_download_file=clang+llvm-$($(package)_version)-x86_64-linux-gnu-ubuntu-18.04.tar.xz
-$(package)_file_name=clang-llvm-$($(package)_version)-x86_64-linux-gnu-ubuntu-18.04.tar.xz
-$(package)_sha256_hash=a23b082b30c128c9831dbdd96edad26b43f56624d0ad0ea9edec506f5385038d
-
-define $(package)_extract_cmds
-  echo $($(package)_sha256_hash) $($(package)_source) | sha256sum -c &&\
-  mkdir -p toolchain/bin toolchain/lib/clang/3.5/include && \
-  tar --strip-components=1 -C toolchain -xf $($(package)_source) && \
-  rm -f toolchain/lib/libc++abi.so* && \
-  echo "#!/bin/sh" > toolchain/bin/$(host)-dsymutil && \
-  echo "exit 0" >> toolchain/bin/$(host)-dsymutil && \
-  chmod +x toolchain/bin/$(host)-dsymutil
-endef
-
-define $(package)_stage_cmds
-  cd $($(package)_extract_dir)/toolchain && \
-  mkdir -p $($(package)_staging_prefix_dir)/lib/clang/$($(package)_version)/include && \
-  mkdir -p $($(package)_staging_prefix_dir)/bin $($(package)_staging_prefix_dir)/include && \
-  cp bin/clang $($(package)_staging_prefix_dir)/bin/ &&\
-  cp -P bin/clang++ $($(package)_staging_prefix_dir)/bin/ &&\
-  cp lib/libLTO.so $($(package)_staging_prefix_dir)/lib/ && \
-  cp -rf lib/clang/$($(package)_version)/include/* $($(package)_staging_prefix_dir)/lib/clang/$($(package)_version)/include/ && \
-  cp bin/dsymutil $($(package)_staging_prefix_dir)/bin/$(host)-dsymutil && \
-  if `test -d lib/c++/`; then cp -rf lib/c++/ $($(package)_staging_prefix_dir)/lib/; fi
-endef
diff --git a/contrib/depends/packages/native_libtapi.mk b/contrib/depends/packages/native_libtapi.mk
index c5625501a..36234a001 100644
--- a/contrib/depends/packages/native_libtapi.mk
+++ b/contrib/depends/packages/native_libtapi.mk
@@ -4,30 +4,16 @@ $(package)_download_path=https://github.com/tpoechtrager/apple-libtapi/archive
 $(package)_download_file=$($(package)_version).tar.gz
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
 $(package)_sha256_hash=62e419c12d1c9fad67cc1cd523132bc00db050998337c734c15bc8d73cc02b61
-$(package)_build_subdir=build
-$(package)_dependencies=native_clang
 $(package)_patches=no_embed_git_rev.patch
 
 define $(package)_preprocess_cmds
   patch -p1 -i $($(package)_patch_dir)/no_embed_git_rev.patch
 endef
 
-define $(package)_config_cmds
-  echo -n $(build_prefix) > INSTALLPREFIX; \
-  CC=$(host_prefix)/native/bin/clang CXX=$(host_prefix)/native/bin/clang++ \
-  cmake -DCMAKE_INSTALL_PREFIX=$(build_prefix) \
-    -DLLVM_INCLUDE_TESTS=OFF \
-	-DCMAKE_BUILD_TYPE=RELEASE \
-	-DTAPI_REPOSITORY_STRING="1100.0.11" \
-	-DTAPI_FULL_VERSION="11.0.0" \
-	-DCMAKE_CXX_FLAGS="-I $($(package)_extract_dir)/src/llvm/projects/clang/include -I $($(package)_build_dir)/projects/clang/include" \
-	$($(package)_extract_dir)/src/llvm
-endef
-
 define $(package)_build_cmds
-  $(MAKE) clangBasic && $(MAKE) libtapi
+  CC=$(clang_prog) CXX=$(clangxx_prog) INSTALLPREFIX=$($(package)_staging_prefix_dir) ./build.sh
 endef
 
 define $(package)_stage_cmds
-  $(MAKE) DESTDIR=$($(package)_staging_dir) install-libtapi install-tapi-headers
+  ./install.sh
 endef
diff --git a/contrib/depends/packages/packages.mk b/contrib/depends/packages/packages.mk
index 14561964f..cb4e8e228 100644
--- a/contrib/depends/packages/packages.mk
+++ b/contrib/depends/packages/packages.mk
@@ -24,5 +24,5 @@ mingw32_packages = $(hardware_packages)
 mingw32_native_packages = $(hardware_native_packages)
 
 ifneq ($(build_os),darwin)
-darwin_native_packages += darwin_sdk native_clang native_cctools native_libtapi
+darwin_native_packages += darwin_sdk native_cctools native_libtapi
 endif
diff --git a/contrib/depends/patches/android_ndk/fix_env.patch b/contrib/depends/patches/android_ndk/fix_env.patch
new file mode 100644
index 000000000..01928dd48
--- /dev/null
+++ b/contrib/depends/patches/android_ndk/fix_env.patch
@@ -0,0 +1,30 @@
+diff --git a/build/tools/make_standalone_toolchain.py b/build/tools/make_standalone_toolchain.py
+index b8172b2..19c0ad6 100755
+--- a/build/tools/make_standalone_toolchain.py
++++ b/build/tools/make_standalone_toolchain.py
+@@ -224,10 +224,10 @@ def make_clang_scripts(install_dir, triple, api, windows):
+         clang.write(textwrap.dedent("""\
+             #!/bin/bash
+             if [ "$1" != "-cc1" ]; then
+-                `dirname $0`/clang{version} {flags} "$@"
++                env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH -u LIBRARY_PATH `dirname $0`/clang{version} {flags} "$@"
+             else
+                 # target/triple already spelled out.
+-                `dirname $0`/clang{version} "$@"
++                env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH -u LIBRARY_PATH `dirname $0`/clang{version} "$@"
+             fi
+         """.format(version=version_number, flags=unix_flags)))
+ 
+@@ -239,10 +239,10 @@ def make_clang_scripts(install_dir, triple, api, windows):
+         clangpp.write(textwrap.dedent("""\
+             #!/bin/bash
+             if [ "$1" != "-cc1" ]; then
+-                `dirname $0`/clang{version}++ {flags} "$@"
++                env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH -u LIBRARY_PATH `dirname $0`/clang{version}++ {flags} "$@"
+             else
+                 # target/triple already spelled out.
+-                `dirname $0`/clang{version}++ "$@"
++                env -u C_INCLUDE_PATH -u CPLUS_INCLUDE_PATH -u OBJC_INCLUDE_PATH -u OBJCPLUS_INCLUDE_PATH -u CPATH -u LIBRARY_PATH `dirname $0`/clang{version}++ "$@"
+             fi
+         """.format(version=version_number, flags=unix_flags)))
+ 
diff --git a/contrib/depends/patches/boost/fix_coalesce.patch b/contrib/depends/patches/boost/fix_coalesce.patch
new file mode 100644
index 000000000..c00aed372
--- /dev/null
+++ b/contrib/depends/patches/boost/fix_coalesce.patch
@@ -0,0 +1,22 @@
+Boost 1.64.0 doesn't recognize that we're building with Clang and passes a
+flags that results in an error. We don't support GCC < 4.0 at all, so
+commenting out the lines here is fine. Patch can be dropped when we update to
+Boost 1.84.0
+
+--- boost_1_64_0/tools/build/src/tools/darwin.jam
++++ boost_1_64_0/tools/build/src/tools/darwin.jam
+@@ -138,10 +138,10 @@ rule init ( version ? : command * : options * : requirement * )
+     common.handle-options darwin : $(condition) : $(command) : $(options) ;
+
+     # - GCC 4.0 and higher in Darwin does not have -fcoalesce-templates.
+-    if $(real-version) < "4.0.0"
+-    {
+-        flags darwin.compile.c++ OPTIONS $(condition) : -fcoalesce-templates ;
+-    }
++    #if $(real-version) < "4.0.0"
++    #{
++    #    flags darwin.compile.c++ OPTIONS $(condition) : -fcoalesce-templates ;
++    #}
+     # - GCC 4.2 and higher in Darwin does not have -Wno-long-double.
+     if $(real-version) < "4.2.0"
+     {
diff --git a/contrib/depends/toolchain.cmake.in b/contrib/depends/toolchain.cmake.in
index fc502c596..f5a7264e3 100644
--- a/contrib/depends/toolchain.cmake.in
+++ b/contrib/depends/toolchain.cmake.in
@@ -78,12 +78,14 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
     SET(CMAKE_OSX_ARCHITECTURES "x86_64")
   endif()
   SET(_CMAKE_TOOLCHAIN_PREFIX @prefix@/native/bin/${CONF_TRIPLE}-)
-  SET(CMAKE_C_COMPILER @prefix@/native/bin/clang)
+  SET(CMAKE_C_COMPILER @CC@)
   SET(CMAKE_C_COMPILER_TARGET ${CLANG_TARGET})
   SET(CMAKE_C_FLAGS_INIT -B${_CMAKE_TOOLCHAIN_PREFIX})
-  SET(CMAKE_CXX_COMPILER @prefix@/native/bin/clang++ -stdlib=libc++)
+  SET(CMAKE_CXX_COMPILER @CXX@ -stdlib=libc++)
   SET(CMAKE_CXX_COMPILER_TARGET ${CLANG_TARGET})
   SET(CMAKE_CXX_FLAGS_INIT -B${_CMAKE_TOOLCHAIN_PREFIX})
+  SET(CMAKE_ASM_COMPILER clang)
+  SET(CMAKE_ASM-ATT_COMPILER as)
   SET(CMAKE_ASM_COMPILER_TARGET ${CLANG_TARGET})
   SET(CMAKE_ASM-ATT_COMPILER_TARGET ${CLANG_TARGET})
   SET(APPLE True)
@@ -112,6 +114,11 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Android")
   SET(CMAKE_C_COMPILER "${_CMAKE_TOOLCHAIN_PREFIX}clang")
   SET(CMAKE_CXX_COMPILER "${_CMAKE_TOOLCHAIN_PREFIX}clang++")
 else()
+  if(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+    SET(CMAKE_ASM_COMPILER clang)
+    SET(CMAKE_ASM-ATT_COMPILER as)
+  endif()
+
   SET(CMAKE_C_COMPILER @CC@)
   SET(CMAKE_CXX_COMPILER @CXX@)
 endif()
diff --git a/contrib/gitian/DOCKRUN.md b/contrib/gitian/DOCKRUN.md
deleted file mode 100644
index 06e4894a2..000000000
--- a/contrib/gitian/DOCKRUN.md
+++ /dev/null
@@ -1,114 +0,0 @@
-Quick Gitian building with docker
-=================================
-
-*Setup instructions for a Gitian build of Monero using Docker.*
-
-Gitian supports other container mechanisms too but if you have a Debian or
-Ubuntu-based host the steps can be greatly simplified.
-
-Preparing the Gitian builder host
----------------------------------
-
-The procedure here will create a docker container for build preparation, as well as
-for actually running the builds. The only items you must install on your own host
-are docker and apt-cacher-ng. With docker installed, you should also give yourself
-permission to use docker by adding yourself to the docker group.
-
-```bash
-sudo apt-get install docker.io apt-cacher-ng
-sudo usermod -aG docker $USER
-su $USER
-```
-
-The final `su` command is needed to start a new shell with your new group membership,
-since the `usermod` command doesn't affect any existing sessions.
-
-You'll also need to clone the monero repository and navigate to the `contrib/gitian` directory:
-
-```bash
-git clone https://github.com/monero-project/monero.git
-cd monero/contrib/gitian
-```
-
-Other User Preparation
-----------------------
-
-The final step will be to `gpg` sign the results of your build and upload them to GitHub.
-Before you can do that, you'll need
-* a GitHub account.
-If your GitHub account name is different from your local account name, you must
-set your GitHub account name for the script to use:
-
-```bash
-export GH_USER=<github account name>
-```
-
-* PGP keys - if you don't have one already, you can use `gpg --quick-gen-key` to generate it.
-* a fork of the [gitian.sigs](https://github.com/monero-project/gitian.sigs/) repo on your GitHub account.
-Please follow the directions there for uploading your key first.
-
-**Note:** Please ensure your gpg public key is available to check signatures by adding it to the [gitian.sigs/gitian-pubkeys/](https://github.com/monero-project/gitian.sigs/tree/master/gitian-pubkeys) directory in a pull request.
-
-
-Building the Binaries
----------------------
-
-The dockrun.sh script will do everything to build the binaries. Just specify the
-version to build as its only argument, e.g.
-
-```bash
-VERSION=v0.18.1.0
-./dockrun.sh $VERSION
-```
-
-The build should run to completion with no errors, and will display the SHA256 checksums
-of the resulting binaries. You'll be prompted to check if the sums look good, and if so
-then the results will be signed, and the signatures will be pushed to GitHub.
-
-***Note: In order to publish the signed assertions via this script, you need to have your SSH key uploaded to GitHub beforehand. See https://docs.github.com/articles/generating-an-ssh-key/ for more info.***
-
-You can also look in the [gitian.sigs](https://github.com/monero-project/gitian.sigs/) repo and / or [getmonero.org release checksums](https://web.getmonero.org/downloads/hashes.txt) to see if others got the same checksum for the same version tag.  If there is ever a mismatch -- **STOP! Something is wrong**.  Contact others on IRC / GitHub to figure out what is going on.
-
-
-Other Options
--------------
-
-This script just runs the [gitian-build.py](gitian-build.py) inside a container named `gitrun`.
-You can set other options for that script by setting the OPT variable when running `dockrun.sh`
-e.g.
-
-```bash
-# Run build processes with 8 threads
-OPT="-j 8" ./dockrun.sh $VERSION
-```
-
-Post-build
-----------
-
-You can examine the build and install logs by running a shell in the container, e.g.
-
-```bash
-# Tail running logs
-docker exec -it gitrun /bin/bash
-tail -F builder/var/install.log
-tail -F builder/var/build.log
-
-# Inspect logs, in format install-<OS>.log and build-<OS>.log
-docker exec -it gitrun /bin/bash
-more builder/var/install-linux.log
-more builder/var/build-linux.log
-```
-
-You can find the compiled archives inside of the container at the following directory:
-
-```bash
-docker exec -it gitrun /bin/bash
-ls -la out/$VERSION/
-```
-
-To copy the compiled archives to the local host out of the Docker container, you can run the following:
-
-```bash
-mkdir out
-docker cp gitrun:/home/ubuntu/out/$VERSION out
-```
diff --git a/contrib/gitian/README.md b/contrib/gitian/README.md
deleted file mode 100644
index 5211b8409..000000000
--- a/contrib/gitian/README.md
+++ /dev/null
@@ -1,272 +0,0 @@
-Gitian building
-================
-
-*Setup instructions for a Gitian build of Monero.*
-
-Gitian is the deterministic build process that is used to build the Monero CLI
-executables. It provides a way to be reasonably sure that the
-executables are really built from the git source. It also makes sure that
-the same, tested dependencies are used and statically built into the executable.
-
-Multiple developers build the source code by following a specific descriptor
-("recipe"), cryptographically sign the result, and upload the resulting signature.
-These results are compared and only if they match, the build is accepted and provided
-for download.
-
-Gitian runs compilation steps in an isolated container. It is flexible and gives you full
-control over the build environment, while still ensuring reproducibility and consistent output
-formats.
-
-More independent Gitian builders are needed, which is why this guide exists.
-It is preferred you follow these steps yourself instead of using someone else's
-VM image to avoid 'contaminating' the build.
-
-Preparing the Gitian builder host
----------------------------------
-
-The first step is to prepare the host environment that will be used to perform the Gitian builds.
-This guide explains how to set up the environment, and how to start the builds.
-
-* Gitian host OS should be Ubuntu 18.04 "Bionic Beaver".  If you are on a mac or windows for example, you can run it in a VM but will be slower.
-
-* Gitian gives you the option of using any of 3 different virtualization tools: `kvm`, `docker` or `lxc`. This documentation will only show how to build with `lxc` and `docker` (documentation for `kvm` is welcome). Building with `lxc` is the default, but is more complicated, so we recommend docker your first time.
-
-* For a shortcut using `docker` follow the instructions in [DOCKRUN.md](DOCKRUN.md) instead
-of following the rest of this document..
-
-## Create the gitianuser account
-
-You need to create a new user called `gitianuser` and be logged in as that user.  The user needs `sudo` access.
-
-```bash
-sudo adduser gitianuser
-sudo usermod -aG sudo gitianuser
-```
-
-LXC
----
-
-LXC builds should be run on Ubuntu 18.04 "Bionic Beaver".
-
-Note that a version of `lxc-execute` higher or equal to 2.1.1 is required.
-You can check the version with `lxc-execute --version`.
-
-First we need to set up dependencies. Type/paste the following in the terminal:
-
-```bash
-sudo apt-get install git ruby apt-cacher-ng qemu-utils debootstrap lxc python-cheetah parted kpartx bridge-utils make ubuntu-archive-keyring curl firewalld
-```
-
-Then set up LXC and the rest with the following, which is a complex jumble of settings and workarounds:
-
-```bash
-sudo -s
-# the version of lxc-start in Debian needs to run as root, so make sure
-# that the build script can execute it without providing a password
-echo "%sudo ALL=NOPASSWD: /usr/bin/lxc-start" > /etc/sudoers.d/gitian-lxc
-echo "%sudo ALL=NOPASSWD: /usr/bin/lxc-execute" >> /etc/sudoers.d/gitian-lxc
-# make /etc/rc.local script that sets up bridge between guest and host
-echo '#!/bin/sh -e' > /etc/rc.local
-echo 'brctl addbr br0' >> /etc/rc.local
-echo 'ip addr add 10.0.2.2/24 broadcast 10.0.2.255 dev br0' >> /etc/rc.local
-echo 'ip link set br0 up' >> /etc/rc.local
-echo 'firewall-cmd --zone=trusted --add-interface=br0' >> /etc/rc.local
-echo 'exit 0' >> /etc/rc.local
-chmod +x /etc/rc.local
-# make sure that USE_LXC is always set when logging in as gitianuser,
-# and configure LXC IP addresses
-echo 'export USE_LXC=1' >> /home/gitianuser/.profile
-echo 'export GITIAN_HOST_IP=10.0.2.2' >> /home/gitianuser/.profile
-echo 'export LXC_GUEST_IP=10.0.2.5' >> /home/gitianuser/.profile
-reboot
-```
-
-This setup is required to enable networking in the container.
-
-Docker
-------
-
-Prepare for building with docker:
-
-```bash
-sudo bash -c 'apt-get update && apt-get upgrade -y && apt-get install git curl docker.io'
-```
-
-Consider adding `gitianuser` to the `docker` group after reading about [the security implications](https://docs.docker.com/v17.09/engine/installation/linux/linux-postinstall/):
-
-```bash
-sudo groupadd docker
-sudo usermod -aG docker gitianuser
-```
-
-Optionally add yourself to the docker group. Note that this will give docker root access to your system.
-
-```bash
-sudo usermod -aG docker $USER
-```
-
-Manual Building
--------------------
-
-=======
-The script automatically installs some packages with apt. If you are not running it on a debian-like system, pass `--no-apt` along with the other
-arguments to it. It calls all available .yml descriptors, which in turn pass the build configurations for different platforms to gitian.
-The instructions below use the automated script [gitian-build.py](gitian-build.py) which is tested to work on Ubuntu.
-
-It calls all available .yml descriptors, which in turn pass the build configurations for different platforms to gitian.
-Help for the build steps taken can be accessed with `./gitian-build.py --help`.
-
-Initial Gitian Setup
---------------------
-
-The `gitian-build.py` script will checkout different release tags, so it's best to copy it to the top level directory:
-
-```bash
-cp monero/contrib/gitian/gitian-build.py .
-```
-
-### Setup the required environment
-
-Common setup part:
-
-```bash
-su - gitianuser
-
-GH_USER=YOUR_GITHUB_USER_NAME
-VERSION=v0.18.0.0
-```
-
-Where `GH_USER` is your GitHub user name and `VERSION` is the version tag you want to build. 
-The `gitian-build.py`'s `--setup` switch will also refresh the environment of any stale files and submodules.
-
-Setup for LXC:
-
-```bash
-./gitian-build.py --setup $GH_USER $VERSION
-```
-
-Setup for docker:
-
-```bash
-./gitian-build.py --setup --docker $GH_USER $VERSION
-```
-
-While gitian and this build script does provide a way for you to sign the build directly, it is recommended to sign in a separate step. This script is only there for convenience. Separate steps for building can still be taken.
-In order to sign gitian builds on your host machine, which has your PGP key, 
-fork the [gitian.sigs repository](https://github.com/monero-project/gitian.sigs) and clone it on your host machine, 
-or pass the signed assert file back to your build machine.
-
-```bash
-git clone https://github.com/monero-project/gitian.sigs/
-pushd gitian.sigs
-git remote add $GH_USER https://github.com/$GH_USER/gitian.sigs
-popd
-```
-
-Build the binaries
-------------------
-
-To build the most recent tag (pass in `--docker` if using docker):
-
-```bash
-./gitian-build.py --detach-sign --no-commit --build $GH_USER $VERSION
-```
-
-To speed up the build, use `-j 5 --memory 10000` as the first arguments, where `5` is the number of CPU's you allocated to the VM plus one, and 10000 is a little bit less than then the MB's of RAM you allocated. If there is memory corruption on your machine, try to tweak these values. A good rule of thumb is, that Monero currently needs about 2 GB of RAM per core. 
-
-A full example for `docker` would look like the following:
-
-```bash
-./gitian-build.py -j 5 --memory 10000 --docker --detach-sign --no-commit --build $GH_USER $VERSION
-```
-
-If all went well, this produces a number of (uncommitted) `.assert` files in the gitian.sigs directory.
-
-Checking your work
-------------------
-
-Take a look in the assert files and note the SHA256 checksums listed there.
-
-You should verify that the checksum that is listed matches each of the binaries you actually built.
-This may be done on Linux using the `sha256sum` command or on MacOS using `shasum --algorithm 256` for example.
-An example script to verify the checksums would be:
-
-```bash
-pushd out/${VERSION}
-
-for ASSERT in ../../sigs/${VERSION}-*/*/*.assert; do
-  if ! sha256sum --ignore-missing -c "${ASSERT}" ; then
-    echo "FAILED for ${ASSERT} ! Please inspect manually."
-  fi
-done
-
-popd
-```
-
-Don't ignore the incorrect formatting of the found assert files. These files you'll have to compare manually (currently OSX and FreeBSD).
-
-
-You can also look in the [gitian.sigs](https://github.com/monero-project/gitian.sigs/) repo and / or [getmonero.org release checksums](https://web.getmonero.org/downloads/hashes.txt) to see if others got the same checksum for the same version tag.  If there is ever a mismatch -- **STOP! Something is wrong**.  Contact others on IRC / github to figure out what is going on.
-
-
-Signing assert files
---------------------
-
-If you chose to do detached signing using `--detach-sign` above (recommended), you need to copy these uncommitted changes to your host machine, then sign them using your gpg key like so:
-
-```bash
-for ASSERT in sigs/${VERSION}-*/*/*.assert; do gpg --detach-sign ${ASSERT}; done
-```
-
-This will create a `.sig` file for each `.assert` file above (2 files for each platform).
-
-
-Submitting your signed assert files
------------------------------------
-
-Make a pull request (both the `.assert` and `.assert.sig` files) to the
-[monero-project/gitian.sigs](https://github.com/monero-project/gitian.sigs/) repository:
-
-```bash
-cd gitian.sigs
-git checkout -b $VERSION
-# add your assert and sig files...
-git commit -S -a -m "Add $GH_USER $VERSION"
-git push --set-upstream $GH_USER $VERSION
-```
-
-**Note:** Please ensure your gpg public key is available to check signatures by adding it to the [gitian.sigs/gitian-pubkeys/](https://github.com/monero-project/gitian.sigs/tree/master/gitian-pubkeys) directory in a pull request.
-
-
-More Build Options
-------------------
-
-You can choose your own remote and commit hash by running for example:
-```bash
-./gitian-build.py --detach-sign --no-commit --url https://github.com/moneromooo-monero/bitmonero -b moneromooo 1f5680c8db8f4cc7acc04a04c724b832003440fd
-```
-
-Note that you won't be able to build commits authored before the gitian scripts
-were added. Gitian clones the source files from the given url, be sure to push
-to the remote you provide before building.
-To get all build options run:
-```bash
-./gitian-build.py --help
-```
-
-Doing Successive Builds
------------------------
-
-If you need to do multiple iterations (while developing/testing) you can use the
-`--rebuild` option instead of `--build` on subsequent iterations. This skips the
-initial check for the freshness of the depends tools. In particular, doing this
-check all the time prevents rebuilding when you have no network access.
-
-
-Local-Only Builds
------------------
-
-If you need to run builds while disconnected from the internet, make sure you have
-local up-to-date repos in advance. Then specify your local repo using the `--url`
-option when building. This will avoid attempts to git pull across a network.
-
diff --git a/contrib/gitian/dockrun.sh b/contrib/gitian/dockrun.sh
deleted file mode 100755
index 396db126b..000000000
--- a/contrib/gitian/dockrun.sh
+++ /dev/null
@@ -1,128 +0,0 @@
-#!/bin/sh
-
-if [ $# -ne 1 ]; then
-	echo "usage: $0 <version>"
-	exit 1
-fi
-VERSION=$1
-
-DOCKER=`command -v docker`
-CACHER=`command -v apt-cacher-ng`
-
-if [ -z "$DOCKER" -o -z "$CACHER" ]; then
-	echo "$0: you must first install docker.io and apt-cacher-ng"
-	echo "  e.g. sudo apt-get install docker.io apt-cacher-ng"
-	exit 1
-fi
-
-GH_USER=${GH_USER-$USER}
-
-TAG=gitrun-bionic
-TAG2=base-bionic-amd64
-IMAGE=`docker images | grep $TAG`
-
-WORKDIR=/home/ubuntu
-
-if [ -z "$IMAGE" ]; then
-GID=`getent group docker`
-mkdir -p docker
-cd docker
-
-# container for running gitian-build.py
-cat <<EOF > ${TAG}.Dockerfile
-FROM ubuntu:bionic
-
-ENV DEBIAN_FRONTEND=noninteractive
-RUN echo 'Acquire::http { Proxy "http://172.17.0.1:3142"; };' > /etc/apt/apt.conf.d/50cacher
-RUN echo "$GID" >> /etc/group
-RUN apt-get update && apt-get --no-install-recommends -y install lsb-release ruby git make wget docker.io python3 curl
-
-RUN useradd -ms /bin/bash -U ubuntu -G docker
-USER ubuntu:docker
-WORKDIR $WORKDIR
-
-RUN	git clone https://github.com/monero-project/gitian.sigs.git sigs; \
-  git clone https://github.com/devrandom/gitian-builder.git builder; \
-  cd builder; git checkout c0f77ca018cb5332bfd595e0aff0468f77542c23; mkdir -p inputs var; cd inputs; \
-  git clone https://github.com/monero-project/monero
-
-CMD ["sleep", "infinity"]
-EOF
-
-docker build --pull -f ${TAG}.Dockerfile -t $TAG .
-
-cd ..
-docker run -v /var/run/docker.sock:/var/run/docker.sock -d --name gitrun $TAG
-
-fi
-
-IMAGE=`docker images | grep $TAG2`
-if [ -z "$IMAGE" ]; then
-mkdir -p docker
-cd docker
-
-# container for actually running each build
-cat <<EOF > ${TAG2}.Dockerfile
-FROM ubuntu:bionic
-
-ENV DEBIAN_FRONTEND=noninteractive
-RUN echo 'Acquire::http { Proxy "http://172.17.0.1:3142"; };' > /etc/apt/apt.conf.d/50cacher
-RUN apt-get update && apt-get --no-install-recommends -y install build-essential git language-pack-en \
-  wget lsb-release curl gcc-7 g++-7 gcc g++ binutils-gold pkg-config autoconf libtool automake faketime \
-  bsdmainutils ca-certificates python cmake gperf
-
-RUN useradd -ms /bin/bash -U ubuntu
-USER ubuntu:ubuntu
-WORKDIR $WORKDIR
-
-CMD ["sleep", "infinity"]
-EOF
-
-docker build --pull -f ${TAG2}.Dockerfile -t $TAG2 .
-
-cd ..
-
-fi
-
-RUNNING=`docker ps | grep gitrun`
-if [ -z "$RUNNING" ]; then
-  BUILT=`docker ps -a | grep gitrun`
-  if [ -z "$BUILT" ]; then
-    docker run -v /var/run/docker.sock:/var/run/docker.sock -d --name gitrun $TAG
-  else
-    docker start gitrun
-  fi
-fi
-docker cp gitian-build.py gitrun:$WORKDIR/
-docker exec -t gitrun ./gitian-build.py -d -b -D -n $OPT $GH_USER $VERSION
-RC=$?
-if [ $RC != 0 ]; then
-	exit $RC
-fi
-echo "\nBuild Results:\n"
-docker exec gitrun sh -c "sha256sum out/$VERSION/*"
-echo "\nIf these results look correct, type \"sign\" to sign them, otherwise ^C to stop now."
-read check
-if [ "$check" != "sign" ]; then
-	echo "Not signing, bye."
-	exit 1
-fi
-
-if [ ! -d sigs ]; then
-	git clone https://github.com/monero-project/gitian.sigs.git sigs
-	cd sigs
-	git remote add $GH_USER git@github.com:$GH_USER/gitian.sigs.git
-	cd ..
-fi
-
-DIRS=`docker exec gitrun sh -c "echo sigs/$VERSION-*"`
-for i in $DIRS; do
-	docker cp gitrun:$WORKDIR/$i sigs
-	gpg --detach-sign $i/$GH_USER/*.assert
-done
-
-cd sigs
-git checkout -b $VERSION
-git add $VERSION-*
-git commit -S -m "Add $GH_USER $VERSION"
-git push --set-upstream $GH_USER $VERSION
diff --git a/contrib/gitian/gitian-android.yml b/contrib/gitian/gitian-android.yml
deleted file mode 100644
index 7e9ca8178..000000000
--- a/contrib/gitian/gitian-android.yml
+++ /dev/null
@@ -1,131 +0,0 @@
----
-name: "monero-android-0.18"
-enable_cache: true
-suites:
-- "bionic"
-architectures:
-- "amd64"
-packages:
-- "curl"
-- "gperf"
-- "gcc-7"
-- "g++-7"
-- "gcc"
-- "g++"
-- "binutils-gold"
-- "git"
-- "pkg-config"
-- "build-essential"
-- "autoconf"
-- "libtool"
-- "automake"
-- "faketime"
-- "bsdmainutils"
-- "ca-certificates"
-- "python"
-- "cmake"
-- "unzip"
-remotes:
-- "url": "https://github.com/monero-project/monero.git"
-  "dir": "monero"
-files: []
-script: |
-
-  WRAP_DIR=$HOME/wrapped
-  HOSTS="arm-linux-android aarch64-linux-android"
-  FAKETIME_HOST_PROGS="clang clang++ ar nm"
-  FAKETIME_PROGS="date"
-  HOST_CFLAGS="-O2 -g"
-  HOST_CXXFLAGS="-O2 -g"
-  HOST_LDFLAGS=-static-libstdc++
-
-  export GZIP="-9n"
-  export TZ="UTC"
-  export BUILD_DIR=`pwd`
-  mkdir -p ${WRAP_DIR}
-  if test -n "$GBUILD_CACHE_ENABLED"; then
-    export SOURCES_PATH=${GBUILD_COMMON_CACHE}
-    export BASE_CACHE=${GBUILD_PACKAGE_CACHE}
-    export GITIAN=1
-    mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
-  fi
-
-  export ZERO_AR_DATE=1
-
-  function create_global_faketime_wrappers {
-  for prog in ${FAKETIME_PROGS}; do
-    echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${prog}
-    echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
-    echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
-    chmod +x ${WRAP_DIR}/${prog}
-  done
-  }
-
-  function create_per-host_faketime_wrappers {
-  for i in $HOSTS; do
-    ABI=$i
-    if expr $i : arm- > /dev/null
-    then
-      ABI=$i"eabi"
-    fi
-    NDKDIR="${BUILD_DIR}/monero/contrib/depends/$i/native/bin"
-    for prog in ${FAKETIME_HOST_PROGS}; do
-        WRAPPER=${WRAP_DIR}/${ABI}-${prog}
-        echo '#!/usr/bin/env bash' > ${WRAPPER}
-        echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAPPER}
-        echo "export FAKETIME=\"$1\"" >> ${WRAPPER}
-        echo "$NDKDIR/${ABI}-$prog \$@" >> ${WRAPPER}
-        chmod +x ${WRAPPER}
-    done
-  done
-  }
-
-  # Faketime for depends so intermediate results are comparable
-  export PATH_orig=${PATH}
-  create_global_faketime_wrappers "2000-01-01 12:00:00"
-  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  # gcc 7+ honors SOURCE_DATE_EPOCH, no faketime needed
-  export SOURCE_DATE_EPOCH=`date -d 2000-01-01T12:00:00 +%s`
-
-  git config --global core.abbrev 9
-  cd monero
-  # Set the version string that gets added to the tar archive name
-  version="`git describe`"
-  if [[ $version == *"-"*"-"* ]]; then
-    version="`git rev-parse --short=9 HEAD`"
-    version="`echo $version | head -c 9`"
-  fi
-
-  BASEPREFIX=`pwd`/contrib/depends
-  # Build dependencies for each host
-  export TAR_OPTIONS=--mtime=2000-01-01T12:00:00
-  for i in $HOSTS; do
-    make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}"
-  done
-
-  # Faketime for binaries
-  export PATH=${PATH_orig}
-  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
-  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
-
-  # Build in a new dir for each host
-  export TAR_OPTIONS=--mtime=${REFERENCE_DATE}T${REFERENCE_TIME}
-  for i in ${HOSTS}; do
-    export PATH=${WRAP_DIR}:${BASEPREFIX}/${i}/native/bin:${PATH_orig}
-    mkdir build && cd build
-    cmake .. -DCMAKE_TOOLCHAIN_FILE=${BASEPREFIX}/${i}/share/toolchain.cmake -DCMAKE_BUILD_TYPE=Release
-    make ${MAKEOPTS}
-    chmod 755 bin/*
-    cp ../LICENSE ../README.md ../docs/ANONYMITY_NETWORKS.md bin
-    chmod 644 bin/LICENSE bin/*.md
-    DISTNAME=monero-${i}-${version}
-    mv bin ${DISTNAME}
-    find ${DISTNAME}/ | sort | tar --no-recursion --owner=0 --group=0 -c -T - | bzip2 -9 > ${OUTDIR}/${DISTNAME}.tar.bz2
-    cd ..
-    rm -rf build
-  done
-
diff --git a/contrib/gitian/gitian-build.py b/contrib/gitian/gitian-build.py
deleted file mode 100755
index 859f460a7..000000000
--- a/contrib/gitian/gitian-build.py
+++ /dev/null
@@ -1,203 +0,0 @@
-#!/usr/bin/env python3
-
-import argparse
-import os
-import subprocess
-import sys
-
-gsigs = 'https://github.com/monero-project/gitian.sigs.git'
-gbrepo = 'https://github.com/devrandom/gitian-builder.git'
-
-platforms = {'l': ['Linux', 'linux', 'tar.bz2'],
-        'a': ['Android', 'android', 'tar.bz2'],
-        'f': ['FreeBSD', 'freebsd', 'tar.bz2'],
-        'w': ['Windows', 'win', 'zip'],
-        'm': ['MacOS', 'osx', 'tar.bz2'] }
-
-def setup():
-    global args, workdir
-    programs = ['apt-cacher-ng', 'ruby', 'git', 'make', 'wget']
-    if args.kvm:
-        programs += ['python-vm-builder', 'qemu-kvm', 'qemu-utils']
-    else:
-        programs += ['lxc', 'debootstrap']
-    if not args.no_apt:
-        subprocess.check_call(['sudo', 'apt-get', 'install', '-qq'] + programs)
-    if not os.path.isdir('sigs'):
-        subprocess.check_call(['git', 'clone', gsigs, 'sigs'])
-    if not os.path.isdir('builder'):
-        subprocess.check_call(['git', 'clone', gbrepo, 'builder'])
-    os.chdir('builder')
-    subprocess.check_call(['git', 'checkout', 'c0f77ca018cb5332bfd595e0aff0468f77542c23'])
-    os.makedirs('inputs', exist_ok=True)
-    os.chdir('inputs')
-    if os.path.isdir('monero'):
-        # Remove the potentially stale monero dir. Otherwise you might face submodule mismatches.
-        subprocess.check_call(['rm', 'monero', '-fR'])
-    subprocess.check_call(['git', 'clone', args.url, 'monero'])
-    os.chdir('..')
-    make_image_prog = ['bin/make-base-vm', '--suite', 'bionic', '--arch', 'amd64']
-    if args.docker:
-        try:
-            subprocess.check_output(['docker', '--help'])
-        except:
-            print("ERROR: Could not find 'docker' command. Ensure this is in your PATH.")
-            sys.exit(1)
-        make_image_prog += ['--docker']
-    elif not args.kvm:
-        make_image_prog += ['--lxc']
-    subprocess.check_call(make_image_prog)
-    os.chdir(workdir)
-    if args.is_bionic and not args.kvm and not args.docker:
-        subprocess.check_call(['sudo', 'sed', '-i', 's/lxcbr0/br0/', '/etc/default/lxc-net'])
-        print('Reboot is required')
-        sys.exit(0)
-
-def rebuild():
-    global args, workdir
-
-    print('\nBuilding Dependencies\n')
-    os.makedirs('../out/' + args.version, exist_ok=True)
-
-
-    for i in args.os:
-        os_name = platforms[i][0]
-        tag_name = platforms[i][1]
-        suffix = platforms[i][2]
-
-        print('\nCompiling ' + args.version + ' ' + os_name)
-        infile = 'inputs/monero/contrib/gitian/gitian-' + tag_name + '.yml'
-        subprocess.check_call(['bin/gbuild', '-j', args.jobs, '-m', args.memory, '--commit', 'monero='+args.commit, '--url', 'monero='+args.url, infile])
-        subprocess.check_call(['bin/gsign', '-p', args.sign_prog, '--signer', args.signer, '--release', args.version+'-'+tag_name, '--destination', '../sigs/', infile])
-        subprocess.check_call('mv build/out/monero-*.' + suffix + ' ../out/'+args.version, shell=True)
-        print('Moving var/install.log to var/install-' + tag_name + '.log')
-        subprocess.check_call('mv var/install.log var/install-' + tag_name + '.log', shell=True)
-        print('Moving var/build.log to var/build-' + tag_name + '.log')
-        subprocess.check_call('mv var/build.log var/build-' + tag_name + '.log', shell=True)
-
-    os.chdir(workdir)
-
-    if args.commit_files:
-        print('\nCommitting '+args.version+' Unsigned Sigs\n')
-        os.chdir('sigs')
-        for i, v in platforms:
-            subprocess.check_call(['git', 'add', args.version+'-'+v[1]+'/'+args.signer])
-        subprocess.check_call(['git', 'commit', '-m', 'Add '+args.version+' unsigned sigs for '+args.signer])
-        os.chdir(workdir)
-
-
-def build():
-    global args, workdir
-
-    print('\nChecking Depends Freshness\n')
-    os.chdir('builder')
-    os.makedirs('inputs', exist_ok=True)
-
-    subprocess.check_call(['make', '-C', 'inputs/monero/contrib/depends', 'download', 'SOURCES_PATH=' + os.getcwd() + '/cache/common'])
-
-    rebuild()
-
-
-def verify():
-    global args, workdir
-    os.chdir('builder')
-
-    for i, v in platforms:
-        print('\nVerifying v'+args.version+' '+v[0]+'\n')
-        subprocess.check_call(['bin/gverify', '-v', '-d', '../sigs/', '-r', args.version+'-'+v[1], 'inputs/monero/contrib/gitian/gitian-'+v[1]+'.yml'])
-    os.chdir(workdir)
-
-def main():
-    global args, workdir
-
-    parser = argparse.ArgumentParser(description='Script for running full Gitian builds.', usage='%(prog)s [options] signer version')
-    parser.add_argument('-c', '--commit', action='store_true', dest='commit', help='Indicate that the version argument is for a commit or branch')
-    parser.add_argument('-p', '--pull', action='store_true', dest='pull', help='Indicate that the version argument is the number of a github repository pull request')
-    parser.add_argument('-u', '--url', dest='url', default='https://github.com/monero-project/monero', help='Specify the URL of the repository. Default is %(default)s')
-    parser.add_argument('-v', '--verify', action='store_true', dest='verify', help='Verify the Gitian build')
-    parser.add_argument('-b', '--build', action='store_true', dest='build', help='Do a Gitian build')
-    parser.add_argument('-B', '--buildsign', action='store_true', dest='buildsign', help='Build both signed and unsigned binaries')
-    parser.add_argument('-o', '--os', dest='os', default='lafwm', help='Specify which Operating Systems the build is for. Default is %(default)s. l for Linux, a for Android, f for FreeBSD, w for Windows, m for MacOS')
-    parser.add_argument('-r', '--rebuild', action='store_true', dest='rebuild', help='Redo a Gitian build')
-    parser.add_argument('-R', '--rebuildsign', action='store_true', dest='rebuildsign', help='Redo and sign a Gitian build')
-    parser.add_argument('-j', '--jobs', dest='jobs', default='2', help='Number of processes to use. Default %(default)s')
-    parser.add_argument('-m', '--memory', dest='memory', default='2000', help='Memory to allocate in MiB. Default %(default)s')
-    parser.add_argument('-k', '--kvm', action='store_true', dest='kvm', help='Use KVM instead of LXC')
-    parser.add_argument('-d', '--docker', action='store_true', dest='docker', help='Use Docker instead of LXC')
-    parser.add_argument('-S', '--setup', action='store_true', dest='setup', help='Set up the Gitian building environment. Uses LXC. If you want to use KVM, use the --kvm option. If you run this script on a non-debian based system, pass the --no-apt flag')
-    parser.add_argument('-D', '--detach-sign', action='store_true', dest='detach_sign', help='Create the assert file for detached signing. Will not commit anything.')
-    parser.add_argument('-n', '--no-commit', action='store_false', dest='commit_files', help='Do not commit anything to git')
-    parser.add_argument('signer', nargs='?', help='GPG signer to sign each build assert file')
-    parser.add_argument('version', nargs='?', help='Version number, commit, or branch to build.')
-    parser.add_argument('-a', '--no-apt', action='store_true', dest='no_apt', help='Indicate that apt is not installed on the system')
-
-    args = parser.parse_args()
-    workdir = os.getcwd()
-
-    args.is_bionic = b'bionic' in subprocess.check_output(['lsb_release', '-cs'])
-
-    if args.buildsign:
-        args.build = True
-        args.sign = True
-
-    if args.rebuildsign:
-        args.rebuild = True
-        args.sign = True
-
-    if args.kvm and args.docker:
-        raise Exception('Error: cannot have both kvm and docker')
-
-    args.sign_prog = 'true' if args.detach_sign else 'gpg --detach-sign'
-
-    # Set enviroment variable USE_LXC or USE_DOCKER, let gitian-builder know that we use lxc or docker
-    if args.docker:
-        os.environ['USE_DOCKER'] = '1'
-    elif not args.kvm:
-        os.environ['USE_LXC'] = '1'
-        if not 'GITIAN_HOST_IP' in os.environ.keys():
-            os.environ['GITIAN_HOST_IP'] = '10.0.2.2'
-        if not 'LXC_GUEST_IP' in os.environ.keys():
-            os.environ['LXC_GUEST_IP'] = '10.0.2.5'
-
-    script_name = os.path.basename(sys.argv[0])
-    # Signer and version shouldn't be empty
-    if args.signer == '':
-        print(script_name+': Missing signer.')
-        print('Try '+script_name+' --help for more information')
-        sys.exit(1)
-    if args.version == '':
-        print(script_name+': Missing version.')
-        print('Try '+script_name+' --help for more information')
-        sys.exit(1)
-
-    # Add leading 'v' for tags
-    if args.commit and args.pull:
-        raise Exception('Cannot have both commit and pull')
-    args.commit = args.commit if args.commit else args.version
-
-    if args.setup:
-        setup()
-
-    os.makedirs('builder/inputs/monero', exist_ok=True)
-    os.chdir('builder/inputs/monero')
-    if args.pull:
-        subprocess.check_call(['git', 'fetch', args.url, 'refs/pull/'+args.version+'/merge'])
-        args.commit = subprocess.check_output(['git', 'show', '-s', '--format=%H', 'FETCH_HEAD'], universal_newlines=True).strip()
-        args.version = 'pull-' + args.version
-    print(args.commit)
-    subprocess.check_call(['git', 'fetch'])
-    subprocess.check_call(['git', 'checkout', args.commit])
-    os.chdir(workdir)
-
-    if args.build:
-        build()
-
-    if args.rebuild:
-        os.chdir('builder')
-        rebuild()
-
-    if args.verify:
-        verify()
-
-if __name__ == '__main__':
-    main()
diff --git a/contrib/gitian/gitian-freebsd.yml b/contrib/gitian/gitian-freebsd.yml
deleted file mode 100644
index 7a17f0750..000000000
--- a/contrib/gitian/gitian-freebsd.yml
+++ /dev/null
@@ -1,128 +0,0 @@
----
-name: "monero-freebsd-0.18"
-enable_cache: true
-suites:
-- "bionic"
-architectures:
-- "amd64"
-packages:
-- "curl"
-- "clang-8"
-- "gperf"
-- "gcc-7"
-- "g++-7"
-- "gcc"
-- "g++"
-- "binutils-gold"
-- "git"
-- "pkg-config"
-- "build-essential"
-- "autoconf"
-- "libtool"
-- "automake"
-- "faketime"
-- "bsdmainutils"
-- "ca-certificates"
-- "python"
-- "cmake"
-remotes:
-- "url": "https://github.com/monero-project/monero.git"
-  "dir": "monero"
-files: []
-script: |
-
-  WRAP_DIR=$HOME/wrapped
-  HOSTS="x86_64-unknown-freebsd"
-  FAKETIME_HOST_PROGS=""
-  FAKETIME_PROGS="clang-8 clang++-8 date"
-  HOST_CFLAGS="-O2 -g"
-  HOST_CXXFLAGS="-O2 -g"
-  HOST_LDFLAGS=-static-libstdc++
-
-  export GZIP="-9n"
-  export TZ="UTC"
-  export BUILD_DIR=`pwd`
-  mkdir -p ${WRAP_DIR}
-  if test -n "$GBUILD_CACHE_ENABLED"; then
-    export SOURCES_PATH=${GBUILD_COMMON_CACHE}
-    export BASE_CACHE=${GBUILD_PACKAGE_CACHE}
-    export GITIAN=1
-    mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
-  fi
-
-  export ZERO_AR_DATE=1
-
-  function create_global_faketime_wrappers {
-  for prog in ${FAKETIME_PROGS}; do
-    echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${prog}
-    echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
-    echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
-    chmod +x ${WRAP_DIR}/${prog}
-  done
-  }
-
-  function create_per-host_faketime_wrappers {
-  for i in $HOSTS; do
-    for prog in ${FAKETIME_HOST_PROGS}; do
-        WRAPPER=${WRAP_DIR}/${i}-${prog}
-        echo '#!/usr/bin/env bash' > ${WRAPPER}
-        echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAPPER}
-        echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAPPER}
-        echo "export FAKETIME=\"$1\"" >> ${WRAPPER}
-        echo "$NDKDIR/${ABI}-$prog \$@" >> ${WRAPPER}
-        chmod +x ${WRAPPER}
-    done
-  done
-  }
-
-  # Faketime for depends so intermediate results are comparable
-  export PATH_orig=${PATH}
-  create_global_faketime_wrappers "2000-01-01 12:00:00"
-  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  # gcc 7+ honors SOURCE_DATE_EPOCH, no faketime needed
-  export SOURCE_DATE_EPOCH=`date -d 2000-01-01T12:00:00 +%s`
-
-  git config --global core.abbrev 9
-  cd monero
-  # Set the version string that gets added to the tar archive name
-  version="`git describe`"
-  if [[ $version == *"-"*"-"* ]]; then
-    version="`git rev-parse --short=9 HEAD`"
-    version="`echo $version | head -c 9`"
-  fi
-
-  BASEPREFIX=`pwd`/contrib/depends
-  # Build dependencies for each host
-  export TAR_OPTIONS=--mtime=2000-01-01T12:00:00
-  for i in $HOSTS; do
-    make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}"
-  done
-
-  # Faketime for binaries
-  export PATH=${PATH_orig}
-  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
-  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
-
-  ORIGPATH="$PATH"
-  # Build in a new dir for each host
-  export SOURCE_DATE_EPOCH=`date -d ${REFERENCE_DATE}T${REFERENCE_TIME} +%s`
-  export TAR_OPTIONS=--mtime=${REFERENCE_DATE}T${REFERENCE_TIME}
-  for i in ${HOSTS}; do
-    export PATH=${WRAP_DIR}:${BASEPREFIX}/${i}/native/bin:${ORIGPATH}
-    mkdir build && cd build
-    cmake .. -DCMAKE_TOOLCHAIN_FILE=${BASEPREFIX}/${i}/share/toolchain.cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_SKIP_RPATH=ON
-    make ${MAKEOPTS}
-    chmod 755 bin/*
-    cp ../LICENSE ../README.md ../docs/ANONYMITY_NETWORKS.md bin
-    chmod 644 bin/LICENSE bin/*.md
-    DISTNAME=monero-${i}-${version}
-    mv bin ${DISTNAME}
-    find ${DISTNAME}/ | sort | tar --no-recursion --owner=0 --group=0 -c -T - | bzip2 -9 > ${OUTDIR}/${DISTNAME}.tar.bz2
-    cd ..
-    rm -rf build
-  done
-
diff --git a/contrib/gitian/gitian-linux.yml b/contrib/gitian/gitian-linux.yml
deleted file mode 100644
index 41915deb9..000000000
--- a/contrib/gitian/gitian-linux.yml
+++ /dev/null
@@ -1,180 +0,0 @@
----
-name: "monero-linux-0.18"
-enable_cache: true
-suites:
-- "bionic"
-architectures:
-- "amd64"
-packages:
-- "curl"
-- "gperf"
-- "gcc-7"
-- "g++-7"
-- "gcc"
-- "g++"
-- "gcc-7-aarch64-linux-gnu"
-- "g++-7-aarch64-linux-gnu"
-- "gcc-aarch64-linux-gnu"
-- "g++-aarch64-linux-gnu"
-- "binutils-aarch64-linux-gnu"
-- "gcc-7-arm-linux-gnueabihf"
-- "g++-7-arm-linux-gnueabihf"
-- "gcc-arm-linux-gnueabihf"
-- "g++-arm-linux-gnueabihf"
-- "g++-riscv64-linux-gnu"
-- "g++-7-multilib"
-- "gcc-7-multilib"
-- "binutils-arm-linux-gnueabihf"
-- "binutils-gold"
-- "git"
-- "pkg-config"
-- "build-essential"
-- "autoconf"
-- "libtool"
-- "automake"
-- "faketime"
-- "bsdmainutils"
-- "ca-certificates"
-- "python"
-- "cmake"
-remotes:
-- "url": "https://github.com/monero-project/monero.git"
-  "dir": "monero"
-files: []
-script: |
-
-  WRAP_DIR=$HOME/wrapped
-  HOSTS="x86_64-linux-gnu arm-linux-gnueabihf aarch64-linux-gnu i686-linux-gnu riscv64-linux-gnu"
-  FAKETIME_HOST_PROGS=""
-  FAKETIME_PROGS="date"
-  HOST_CFLAGS="-O2 -g"
-  HOST_CXXFLAGS="-O2 -g"
-  HOST_LDFLAGS=-static-libstdc++
-
-  export GZIP="-9n"
-  export TZ="UTC"
-  export BUILD_DIR=`pwd`
-  mkdir -p ${WRAP_DIR}
-  if test -n "$GBUILD_CACHE_ENABLED"; then
-    export SOURCES_PATH=${GBUILD_COMMON_CACHE}
-    export BASE_CACHE=${GBUILD_PACKAGE_CACHE}
-    export GITIAN=1
-    mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
-  fi
-
-  function create_global_faketime_wrappers {
-  for prog in ${FAKETIME_PROGS}; do
-    echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${prog}
-    echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
-    echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
-    chmod +x ${WRAP_DIR}/${prog}
-  done
-  }
-
-  function create_per-host_faketime_wrappers {
-  for i in $HOSTS; do
-    for prog in ${FAKETIME_HOST_PROGS}; do
-        if which ${i}-${prog}-7
-        then
-            echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${i}-${prog}
-            echo "REAL=\`which -a ${i}-${prog}-7 | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
-            echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
-            echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
-            echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
-            chmod +x ${WRAP_DIR}/${i}-${prog}
-        fi
-    done
-  done
-  }
-
-  # Faketime for depends so intermediate results are comparable
-  export PATH_orig=${PATH}
-  create_global_faketime_wrappers "2000-01-01 12:00:00"
-  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  EXTRA_INCLUDES_BASE=$WRAP_DIR/extra_includes
-  mkdir -p $EXTRA_INCLUDES_BASE
-
-  # x86 needs /usr/include/i386-linux-gnu/asm pointed to /usr/include/x86_64-linux-gnu/asm,
-  # but we can't write there. Instead, create a link here and force it to be included in the
-  # search paths.
-  # This problem goes away if linux-libc-dev:i386 pkg exists, but it's not in bionic.
-
-  mkdir -p $EXTRA_INCLUDES_BASE/i686-linux-gnu
-  rm -f $WRAP_DIR/extra_includes/i686-linux-gnu/asm
-  ln -s /usr/include/x86_64-linux-gnu/asm $EXTRA_INCLUDES_BASE/i686-linux-gnu/asm
-
-  # glibc 2.23 breaks compatibility with <=2.19 use of lgamma function.
-  # Hack the math header to restore the old behavior.
-  mkdir $EXTRA_INCLUDES_BASE/bits
-  sed -e '/__REDIRFROM .lgamma,/,+3s/_USE_/_DONTUSE_/g' /usr/include/x86_64-linux-gnu/bits/math-finite.h > $EXTRA_INCLUDES_BASE/bits/math-finite.h
-
-  # gcc 7+ honors SOURCE_DATE_EPOCH, no faketime needed
-  export SOURCE_DATE_EPOCH=`date -d 2000-01-01T12:00:00 +%s`
-
-  git config --global core.abbrev 9
-  cd monero
-  # Set the version string that gets added to the tar archive name
-  version="`git describe`"
-  if [[ $version == *"-"*"-"* ]]; then
-    version="`git rev-parse --short=9 HEAD`"
-    version="`echo $version | head -c 9`"
-  fi
-
-  BASEPREFIX=`pwd`/contrib/depends
-  # Build dependencies for each host
-  export TAR_OPTIONS=--mtime=2000-01-01T12:00:00
-  for i in $HOSTS; do
-    ARCH_INCLUDES="$EXTRA_INCLUDES_BASE/$i"
-    if [ -d "$ARCH_INCLUDES" ]; then
-      EXTRA_INCLUDES="${EXTRA_INCLUDES_BASE}:${ARCH_INCLUDES}"
-    else
-      EXTRA_INCLUDES="${EXTRA_INCLUDES_BASE}"
-    fi
-    export C_INCLUDE_PATH="$EXTRA_INCLUDES"
-    export CPLUS_INCLUDE_PATH="$EXTRA_INCLUDES"
-    make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}" V=1
-  done
-
-  # Faketime for binaries
-  export PATH=${PATH_orig}
-  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
-  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  ORIGPATH="$PATH"
-  # Build in a new dir for each host
-  export SOURCE_DATE_EPOCH=`date -d ${REFERENCE_DATE}T${REFERENCE_TIME} +%s`
-  export TAR_OPTIONS=--mtime=${REFERENCE_DATE}T${REFERENCE_TIME}
-  for i in ${HOSTS}; do
-    export PATH=${BASEPREFIX}/${i}/native/bin:${ORIGPATH}
-    mkdir build && cd build
-    ARCH_INCLUDES="$EXTRA_INCLUDES_BASE/$i"
-    if [ -d "$ARCH_INCLUDES" ]; then
-      EXTRA_INCLUDES="${EXTRA_INCLUDES_BASE}:${ARCH_INCLUDES}"
-    else
-      EXTRA_INCLUDES="${EXTRA_INCLUDES_BASE}"
-    fi
-    export C_INCLUDE_PATH="$EXTRA_INCLUDES"
-    export CPLUS_INCLUDE_PATH="$EXTRA_INCLUDES"
-    #  glibc only added riscv support in 2.27, disable backwards compatibility
-    if [ "$i" == "riscv64-linux-gnu" ]; then
-      BACKCOMPAT_OPTION=OFF
-    else
-      BACKCOMPAT_OPTION=ON
-    fi
-    cmake .. -DCMAKE_TOOLCHAIN_FILE=${BASEPREFIX}/${i}/share/toolchain.cmake -DBACKCOMPAT=${BACKCOMPAT_OPTION} -DCMAKE_SKIP_RPATH=ON
-    make ${MAKEOPTS}
-    chmod 755 bin/*
-    cp ../LICENSE ../README.md ../docs/ANONYMITY_NETWORKS.md bin
-    chmod 644 bin/LICENSE bin/*.md
-    DISTNAME=monero-${i}-${version}
-    mv bin ${DISTNAME}
-    find ${DISTNAME}/ | sort | tar --no-recursion --owner=0 --group=0 -c -T - | bzip2 -9 > ${OUTDIR}/${DISTNAME}.tar.bz2
-    cd ..
-    rm -rf build
-  done
-
diff --git a/contrib/gitian/gitian-osx.yml b/contrib/gitian/gitian-osx.yml
deleted file mode 100644
index 74ad21ea3..000000000
--- a/contrib/gitian/gitian-osx.yml
+++ /dev/null
@@ -1,119 +0,0 @@
----
-name: "monero-osx-0.18"
-enable_cache: true
-suites:
-- "bionic"
-architectures:
-- "amd64"
-packages:
-- "ca-certificates"
-- "curl"
-- "g++"
-- "git"
-- "pkg-config"
-- "autoconf"
-- "libtool"
-- "automake"
-- "faketime"
-- "bsdmainutils"
-- "cmake"
-- "libcap-dev"
-- "libz-dev"
-- "libbz2-dev"
-- "python"
-- "python-dev"
-- "python-setuptools"
-remotes:
-- "url": "https://github.com/monero-project/monero.git"
-  "dir": "monero"
-files: []
-script: |
-  WRAP_DIR=$HOME/wrapped
-  HOSTS="x86_64-apple-darwin aarch64-apple-darwin"
-  FAKETIME_HOST_PROGS=""
-  FAKETIME_PROGS="ar ranlib date dmg genisoimage python"
-
-  export GZIP="-9n"
-  export TZ="UTC"
-  export BUILD_DIR=`pwd`
-  mkdir -p ${WRAP_DIR}
-  if test -n "$GBUILD_CACHE_ENABLED"; then
-    export SOURCES_PATH=${GBUILD_COMMON_CACHE}
-    export BASE_CACHE=${GBUILD_PACKAGE_CACHE}
-    export GITIAN=1
-    mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
-  fi
-
-  export ZERO_AR_DATE=1
-
-  function create_global_faketime_wrappers {
-  for prog in ${FAKETIME_PROGS}; do
-    echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${prog}
-    echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
-    echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
-    chmod +x ${WRAP_DIR}/${prog}
-  done
-  }
-
-  function create_per-host_faketime_wrappers {
-  for i in $HOSTS; do
-    for prog in ${FAKETIME_HOST_PROGS}; do
-        echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${i}-${prog}
-        echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
-        echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
-        echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
-        echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
-        chmod +x ${WRAP_DIR}/${i}-${prog}
-    done
-  done
-  }
-
-  # Faketime for depends so intermediate results are comparable
-  export PATH_orig=${PATH}
-  create_global_faketime_wrappers "2000-01-01 12:00:00"
-  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  git config --global core.abbrev 9
-  cd monero
-  # Set the version string that gets added to the tar archive name
-  version="`git describe`"
-  if [[ $version == *"-"*"-"* ]]; then
-    version="`git rev-parse --short=9 HEAD`"
-    version="`echo $version | head -c 9`"
-  fi
-
-  BASEPREFIX=`pwd`/contrib/depends
-
-  # Build dependencies for each host
-  export TAR_OPTIONS=--mtime=2000-01-01T12:00:00
-  for i in $HOSTS; do
-    make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}"
-  done
-
-  # Faketime for binaries
-  export PATH=${PATH_orig}
-  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
-  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  ORIGPATH="$PATH"
-  # Build in a new dir for each host
-  export TAR_OPTIONS=--mtime=${REFERENCE_DATE}T${REFERENCE_TIME}
-  for i in ${HOSTS}; do
-    export PATH=${BASEPREFIX}/${i}/native/bin:${ORIGPATH}
-    mkdir build && cd build
-    cmake .. -DCMAKE_TOOLCHAIN_FILE=${BASEPREFIX}/${i}/share/toolchain.cmake
-    make ${MAKEOPTS}
-    chmod 755 bin/*
-    cp ../LICENSE ../README.md ../docs/ANONYMITY_NETWORKS.md bin
-    chmod 644 bin/LICENSE bin/*.md
-    DISTNAME=monero-${i}-${version}
-    mv bin ${DISTNAME}
-    find ${DISTNAME}/ | sort | tar --no-recursion --owner=0 --group=0 -c -T - | bzip2 -9 > ${OUTDIR}/${DISTNAME}.tar.bz2
-    cd ..
-    rm -rf build
-  done
-
diff --git a/contrib/gitian/gitian-win.yml b/contrib/gitian/gitian-win.yml
deleted file mode 100644
index 4c607898e..000000000
--- a/contrib/gitian/gitian-win.yml
+++ /dev/null
@@ -1,136 +0,0 @@
----
-name: "monero-win-0.18"
-enable_cache: true
-suites:
-- "bionic"
-architectures:
-- "amd64"
-packages:
-- "curl"
-- "g++"
-- "git"
-- "pkg-config"
-- "autoconf"
-- "libtool"
-- "automake"
-- "faketime"
-- "bsdmainutils"
-- "mingw-w64"
-- "g++-mingw-w64"
-- "zip"
-- "ca-certificates"
-- "python"
-- "cmake"
-alternatives:
--
-  package: "i686-w64-mingw32-g++"
-  path: "/usr/bin/i686-w64-mingw32-g++-posix"
--
-  package: "i686-w64-mingw32-gcc"
-  path: "/usr/bin/i686-w64-mingw32-gcc-posix"
--
-  package: "x86_64-w64-mingw32-g++"
-  path: "/usr/bin/x86_64-w64-mingw32-g++-posix"
--
-  package: "x86_64-w64-mingw32-gcc"
-  path: "/usr/bin/x86_64-w64-mingw32-gcc-posix"
-remotes:
-- "url": "https://github.com/monero-project/monero.git"
-  "dir": "monero"
-files: []
-script: |
-  WRAP_DIR=$HOME/wrapped
-  HOSTS="i686-w64-mingw32 x86_64-w64-mingw32"
-  FAKETIME_HOST_PROGS="windres objcopy"
-  FAKETIME_PROGS="date zip"
-  HOST_CFLAGS="-O2 -g"
-  HOST_CXXFLAGS="-O2 -g"
-
-  export GZIP="-9n"
-  export TZ="UTC"
-  export BUILD_DIR=`pwd`
-  mkdir -p ${WRAP_DIR}
-  if test -n "$GBUILD_CACHE_ENABLED"; then
-    export SOURCES_PATH=${GBUILD_COMMON_CACHE}
-    export BASE_CACHE=${GBUILD_PACKAGE_CACHE}
-    export GITIAN=1
-    mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
-  fi
-
-  function create_global_faketime_wrappers {
-  for prog in ${FAKETIME_PROGS}; do
-    echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${prog}
-    echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
-    echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
-    echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
-    echo "\$REAL \$@" >> $WRAP_DIR/${prog}
-    chmod +x ${WRAP_DIR}/${prog}
-  done
-  }
-
-  function create_per-host_faketime_wrappers {
-  for i in $HOSTS; do
-    for prog in ${FAKETIME_HOST_PROGS}; do
-        echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${i}-${prog}
-        echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
-        echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
-        echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
-        echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
-        chmod +x ${WRAP_DIR}/${i}-${prog}
-    done
-  done
-  }
-
-  # Faketime for depends so intermediate results are comparable
-  export PATH_orig=${PATH}
-  create_global_faketime_wrappers "2000-01-01 12:00:00"
-  create_per-host_faketime_wrappers "2000-01-01 12:00:00"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  # gcc 7+ honors SOURCE_DATE_EPOCH, no faketime needed
-  export SOURCE_DATE_EPOCH=`date -d 2000-01-01T12:00:00 +%s`
-
-  git config --global core.abbrev 9
-  cd monero
-  # Set the version string that gets added to the tar archive name
-  version="`git describe`"
-  if [[ $version == *"-"*"-"* ]]; then
-    version="`git rev-parse --short=9 HEAD`"
-    version="`echo $version | head -c 9`"
-  fi
-
-  BASEPREFIX=`pwd`/contrib/depends
-  # Build dependencies for each host
-  export TAR_OPTIONS=--mtime=2000-01-01T12:00:00
-  for i in $HOSTS; do
-    EXTRA_INCLUDES="$EXTRA_INCLUDES_BASE/$i"
-    if [ -d "$EXTRA_INCLUDES" ]; then
-      export HOST_ID_SALT="$EXTRA_INCLUDES"
-    fi
-    make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}" V=1
-    unset HOST_ID_SALT
-  done
-
-  # Faketime for binaries
-  export PATH=${PATH_orig}
-  create_global_faketime_wrappers "${REFERENCE_DATETIME}"
-  create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
-  export PATH=${WRAP_DIR}:${PATH}
-
-  ORIGPATH="$PATH"
-  # Run cmake and make, for each create a new build/ directory, 
-  # compile from there, archive, export and delete the archive again
-  export SOURCE_DATE_EPOCH=`date -d ${REFERENCE_DATE}T${REFERENCE_TIME} +%s`
-  export TAR_OPTIONS=--mtime=${REFERENCE_DATE}T${REFERENCE_TIME}
-  for i in ${HOSTS}; do
-    export PATH=${BASEPREFIX}/${i}/native/bin:${ORIGPATH}
-    mkdir build && cd build
-    cmake .. -DCMAKE_TOOLCHAIN_FILE=${BASEPREFIX}/${i}/share/toolchain.cmake
-    make ${MAKEOPTS}
-    cp ../LICENSE ../README.md ../docs/ANONYMITY_NETWORKS.md bin
-    DISTNAME=monero-${i}-${version}
-    mv bin ${DISTNAME}
-    find ${DISTNAME}/ | sort | zip -X@ ${OUTDIR}/${DISTNAME}.zip
-    cd .. && rm -rf build
-  done
-
diff --git a/contrib/guix/INSTALL.md b/contrib/guix/INSTALL.md
new file mode 100644
index 000000000..c6b6a3cb7
--- /dev/null
+++ b/contrib/guix/INSTALL.md
@@ -0,0 +1,798 @@
+# Guix Installation and Setup
+
+This only needs to be done once per machine. If you have already completed the
+installation and setup, please proceed to [perform a build](./README.md).
+
+Otherwise, you may choose from one of the following options to install Guix:
+
+1. Using the official **shell installer script** [⤓ skip to section][install-script]
+   - Maintained by Guix developers
+   - Easiest (automatically performs *most* setup)
+   - Works on nearly all Linux distributions
+   - Only installs latest release
+   - Binary installation only, requires high level of trust
+   - Note: The script needs to be run as root, so it should be inspected before it's run
+2. Using the official **binary tarball** [⤓ skip to section][install-bin-tarball]
+   - Maintained by Guix developers
+   - Normal difficulty (full manual setup required)
+   - Works on nearly all Linux distributions
+   - Installs any release
+   - Binary installation only, requires high level of trust
+3. Using a **distribution-maintained package** [⤓ skip to section][install-distro-pkg]
+   - Maintained by distribution's Guix package maintainer
+   - Normal difficulty (manual setup required)
+   - Works only on distributions with Guix packaged, see: https://repology.org/project/guix/versions
+   - Installs a release decided on by package maintainer
+   - Source or binary installation depending on the distribution
+4. Building **from source** [⤓ skip to section][install-source]
+   - Maintained by you
+   - Hard, but rewarding
+   - Can be made to work on most Linux distributions
+   - Installs any commit (more granular)
+   - Source installation, requires lower level of trust
+
+## Options 1 and 2: Using the official shell installer script or binary tarball
+
+The installation instructions for both the official shell installer script and
+the binary tarballs can be found in the GNU Guix Manual's [Binary Installation
+section](https://guix.gnu.org/manual/en/html_node/Binary-Installation.html).
+
+Note that running through the binary tarball installation steps is largely
+equivalent to manually performing what the shell installer script does.
+
+Note that at the time of writing (July 5th, 2021), the shell installer script
+automatically creates an `/etc/profile.d` entry which the binary tarball
+installation instructions do not ask you to create. However, you will likely
+need this entry for better desktop integration. Please see [this
+section](#add-an-etcprofiled-entry) for instructions on how to add a
+`/etc/profile.d/guix.sh` entry.
+
+Regardless of which installation option you chose, the changes to
+`/etc/profile.d` will not take effect until the next shell or desktop session,
+so you should log out and log back in.
+
+## Option 3: Using a distribution-maintained package
+
+Note that this section is based on the distro packaging situation at the time of
+writing (July 2021). Guix is expected to be more widely packaged over time. For
+an up-to-date view on Guix's package status/version across distros, please see:
+https://repology.org/project/guix/versions
+
+### Debian / Ubuntu
+
+Guix is available as a distribution package in [Debian
+](https://packages.debian.org/search?keywords=guix) and [Ubuntu
+](https://packages.ubuntu.com/search?keywords=guix).
+
+To install:
+```sh
+sudo apt install guix
+```
+
+### Arch Linux
+
+Guix is available in the AUR as
+[`guix`](https://aur.archlinux.org/packages/guix/), please follow the
+installation instructions in the Arch Linux Wiki ([live
+link](https://wiki.archlinux.org/index.php/Guix#AUR_Package_Installation),
+[2021/03/30
+permalink](https://wiki.archlinux.org/index.php?title=Guix&oldid=637559#AUR_Package_Installation))
+to install Guix.
+
+At the time of writing (2021/03/30), the `check` phase will fail if the path to
+guix's build directory is longer than 36 characters due to an anachronistic
+character limit on the shebang line. Since the `check` phase happens after the
+`build` phase, which may take quite a long time, it is recommended that users
+either:
+
+1. Skip the `check` phase
+   - For `makepkg`: `makepkg --nocheck ...`
+   - For `yay`: `yay --mflags="--nocheck" ...`
+   - For `paru`: `paru --nocheck ...`
+2. Or, check their build directory's length beforehand
+   - For those building with `makepkg`: `pwd | wc -c`
+
+## Option 4: Building from source
+
+Building Guix from source is a rather involved process but a rewarding one for
+those looking to minimize trust and maximize customizability (e.g. building a
+particular commit of Guix). Previous experience with using autotools-style build
+systems to build packages from source will be helpful. *hic sunt dracones.*
+
+I strongly urge you to at least skim through the entire section once before you
+start issuing commands, as it will save you a lot of unnecessary pain and
+anguish.
+
+### Installing common build tools
+
+There are a few basic build tools that are required for most things we'll build,
+so let's install them now:
+
+Text transformation/i18n:
+- `autopoint` (sometimes packaged in `gettext`)
+- `help2man`
+- `po4a`
+- `texinfo`
+
+Build system tools:
+- `g++` w/ C++11 support
+- `libtool`
+- `autoconf`
+- `automake`
+- `pkg-config` (sometimes packaged as `pkgconf`)
+- `make`
+- `cmake`
+
+Miscellaneous:
+- `git`
+- `gnupg`
+- `python3`
+
+### Building and Installing Guix's dependencies
+
+In order to build Guix itself from source, we need to first make sure that the
+necessary dependencies are installed and discoverable. The most up-to-date list
+of Guix's dependencies is kept in the ["Requirements"
+section](https://guix.gnu.org/manual/en/html_node/Requirements.html) of the Guix
+Reference Manual.
+
+Depending on your distribution, most or all of these dependencies may already be
+packaged and installable without manually building and installing.
+
+For reference, the graphic below outlines Guix v1.3.0's dependency graph:
+
+![bootstrap map](https://user-images.githubusercontent.com/6399679/125064185-a9a59880-e0b0-11eb-82c1-9b8e5dc9950d.png)
+
+If you do not care about building each dependency from source, and Guix is
+already packaged for your distribution, you can easily install only the build
+dependencies of Guix. For example, to enable deb-src and install the Guix build
+dependencies on Ubuntu/Debian:
+
+```sh
+sed -i 's|# deb-src|deb-src|g' /etc/apt/sources.list
+apt update
+apt-get build-dep -y guix
+```
+
+If this succeeded, you can likely skip to section
+["Building and Installing Guix itself"](#building-and-installing-guix-itself).
+
+#### Guile
+
+###### Corner case: Multiple versions of Guile on one system
+
+It is recommended to only install the required version of Guile, so that build systems do
+not get confused about which Guile to use.
+
+However, if you insist on having more versions of Guile installed on
+your system, then you need to **consistently** specify
+`GUILE_EFFECTIVE_VERSION=3.0` to all
+`./configure` invocations for Guix and its dependencies.
+
+##### Installing Guile
+
+If your distribution splits packages into `-dev`-suffixed and
+non-`-dev`-suffixed sub-packages (as is the case for Debian-derived
+distributions), please make sure to install both. For example, to install Guile
+v3.0 on Debian/Ubuntu:
+
+```sh
+apt install guile-3.0 guile-3.0-dev
+```
+
+#### Mixing distribution packages and source-built packages
+
+At the time of writing, most distributions have _some_ of Guix's dependencies
+packaged, but not all. This means that you may want to install the distribution
+package for some dependencies, and manually build-from-source for others.
+
+Distribution packages usually install to `/usr`, which is different from the
+default `./configure` prefix of source-built packages: `/usr/local`.
+
+This means that if you mix-and-match distribution packages and source-built
+packages and do not specify exactly `--prefix=/usr` to `./configure` for
+source-built packages, you will need to augment the `GUILE_LOAD_PATH` and
+`GUILE_LOAD_COMPILED_PATH` environment variables so that Guile will look
+under the right prefix and find your source-built packages.
+
+For example, if you are using Guile v3.0, and have Guile packages in the
+`/usr/local` prefix, either add the following lines to your `.profile` or
+`.bash_profile` so that the environment variable is properly set for all future
+shell logins, or paste the lines into a POSIX-style shell to temporarily modify
+the environment variables of your current shell session.
+
+```sh
+# Help Guile v3.0.x find packages in /usr/local
+export GUILE_LOAD_PATH="/usr/local/share/guile/site/3.0${GUILE_LOAD_PATH:+:}$GUILE_LOAD_PATH"
+export GUILE_LOAD_COMPILED_PATH="/usr/local/lib/guile/3.0/site-ccache${GUILE_LOAD_COMPILED_PATH:+:}$GUILE_COMPILED_LOAD_PATH"
+```
+
+Note that these environment variables are used to check for packages during
+`./configure`, so they should be set as soon as possible should you want to use
+a prefix other than `/usr`.
+
+#### Building and installing source-built packages
+
+***IMPORTANT**: A few dependencies have non-obvious quirks/errata which are
+documented in the sub-sections immediately below. Please read these sections
+before proceeding to build and install these packages.*
+
+Although you should always refer to the README or INSTALL files for the most
+accurate information, most of these dependencies use autoconf-style build
+systems (check if there's a `configure.ac` file), and will likely do the right
+thing with the following:
+
+Clone the repository and check out the latest release:
+```sh
+git clone <git-repo-of-dependency>/<dependency>.git
+cd <dependency>
+git tag -l  # check for the latest release
+git checkout <latest-release>
+```
+
+For autoconf-based build systems (if `./autogen.sh` or `configure.ac` exists at
+the root of the repository):
+
+```sh
+./autogen.sh || autoreconf -vfi
+./configure --prefix=<prefix>
+make
+sudo make install
+```
+
+For CMake-based build systems (if `CMakeLists.txt` exists at the root of the
+repository):
+
+```sh
+mkdir build && cd build
+cmake .. -DCMAKE_INSTALL_PREFIX=<prefix>
+sudo cmake --build . --target install
+```
+
+If you choose not to specify exactly `--prefix=/usr` to `./configure`, please
+make sure you've carefully read the [previous section] on mixing distribution
+packages and source-built packages.
+
+##### Binding packages require `-dev`-suffixed packages
+
+Relevant for:
+- Everyone
+
+When building bindings, the `-dev`-suffixed version of the original package
+needs to be installed. For example, building `Guile-zlib` on Debian-derived
+distributions requires that `zlib1g-dev` is installed.
+
+When using bindings, the `-dev`-suffixed version of the original package still
+needs to be installed. This is particularly problematic when distribution
+packages are mispackaged like `guile-sqlite3` is in Ubuntu Focal such that
+installing `guile-sqlite3` does not automatically install `libsqlite3-dev` as a
+dependency.
+
+Below is a list of relevant Guile bindings and their corresponding `-dev`
+packages in Debian at the time of writing.
+
+| Guile binding package | -dev Debian package |
+|-----------------------|---------------------|
+| guile-gcrypt          | libgcrypt-dev       |
+| guile-git             | libgit2-dev         |
+| guile-gnutls          | (none)              |
+| guile-json            | (none)              |
+| guile-lzlib           | liblz-dev           |
+| guile-ssh             | libssh-dev          |
+| guile-sqlite3         | libsqlite3-dev      |
+| guile-zlib            | zlib1g-dev          |
+
+##### `guile-git` actually depends on `libgit2 >= 1.1`
+
+Relevant for:
+- Those building `guile-git` from source against `libgit2 < 1.1`
+- Those installing `guile-git` from their distribution where `guile-git` is
+  built against `libgit2 < 1.1`
+
+As of v0.5.2, `guile-git` claims to only require `libgit2 >= 0.28.0`, however,
+it actually requires `libgit2 >= 1.1`, otherwise, it will be confused by a
+reference of `origin/keyring`: instead of interpreting the reference as "the
+'keyring' branch of the 'origin' remote", the reference is interpreted as "the
+branch literally named 'origin/keyring'"
+
+This is especially notable because Ubuntu Focal packages `libgit2 v0.28.4`, and
+`guile-git` is built against it.
+
+Should you be in this situation, you need to build both `libgit2 v1.1.x` and
+`guile-git` from source.
+
+Source: https://logs.guix.gnu.org/guix/2020-11-12.log#232527
+
+### Building and Installing Guix itself
+
+Start by cloning Guix:
+
+```
+git clone https://git.savannah.gnu.org/git/guix.git
+cd guix
+```
+
+You will likely want to build the latest release.
+At the time of writing (November 2023), the latest release was `v1.4.0`.
+
+```
+git branch -a -l 'origin/version-*'  # check for the latest release
+git checkout <latest-release>
+```
+
+Bootstrap the build system:
+```
+./bootstrap
+```
+
+Configure with the recommended `--localstatedir` flag:
+```
+./configure --localstatedir=/var
+```
+
+Note: If you intend to hack on Guix in the future, you will need to supply the
+same `--localstatedir=` flag for all future Guix `./configure` invocations. See
+the last paragraph of this
+[section](https://guix.gnu.org/manual/en/html_node/Requirements.html) for more
+details.
+
+Build Guix (this will take a while):
+```
+make -j$(nproc)
+```
+
+Install Guix:
+
+```
+sudo make install
+```
+
+### Post-"build from source" Setup
+
+#### Creating and starting a `guix-daemon-original` service with a fixed `argv[0]`
+
+At this point, guix will be installed to `${bindir}`, which is likely
+`/usr/local/bin` if you did not override directory variables at
+`./configure`-time. More information on standard Automake directory variables
+can be found
+[here](https://www.gnu.org/software/automake/manual/html_node/Standard-Directory-Variables.html).
+
+However, the Guix init scripts and service configurations for Upstart, systemd,
+SysV, and OpenRC are installed (in `${libdir}`) to launch
+`${localstatedir}/guix/profiles/per-user/root/current-guix/bin/guix-daemon`,
+which does not yet exist, and will only exist after [`root` performs their first
+`guix pull`](#guix-pull-as-root).
+
+We need to create a `-original` version of these init scripts that's pointed to
+the binaries we just built and `make install`'ed in `${bindir}` (normally,
+`/usr/local/bin`).
+
+Example for `systemd`, run as `root`:
+
+```sh
+# Create guix-daemon-original.service by modifying guix-daemon.service
+libdir=# set according to your PREFIX (default is /usr/local/lib)
+bindir="$(dirname $(command -v guix-daemon))"
+sed -E -e "s|/\S*/guix/profiles/per-user/root/current-guix/bin/guix-daemon|${bindir}/guix-daemon|" "${libdir}"/systemd/system/guix-daemon.service > /etc/systemd/system/guix-daemon-original.service
+chmod 664 /etc/systemd/system/guix-daemon-original.service
+
+# Make systemd recognize the new service
+systemctl daemon-reload
+
+# Make sure that the non-working guix-daemon.service is stopped and disabled
+systemctl stop guix-daemon
+systemctl disable guix-daemon
+
+# Make sure that the working guix-daemon-original.service is started and enabled
+systemctl enable guix-daemon-original
+systemctl start guix-daemon-original
+```
+
+#### Creating `guix-daemon` users / groups
+
+Please see the [relevant
+section](https://guix.gnu.org/manual/en/html_node/Build-Environment-Setup.html)
+in the Guix Reference Manual for more details.
+
+## Optional setup
+
+At this point, you are set up to [use Guix to build Monero](./README.md#usage). However, if you want to polish your setup a bit and
+make it "what Guix intended", then read the next few subsections.
+
+### Add an `/etc/profile.d` entry
+
+This section definitely does not apply to you if you installed Guix using:
+1. The shell installer script
+2. fanquake's Docker image
+3. Debian's `guix` package
+
+#### Background
+
+Although Guix knows how to update itself and its packages, it does so in a
+non-invasive way (it does not modify `/usr/local/bin/guix`).
+
+Instead, it does the following:
+
+- After a `guix pull`, it updates
+  `/var/guix/profiles/per-user/$USER/current-guix`, and creates a symlink
+  targeting this directory at `$HOME/.config/guix/current`
+
+- After a `guix install`, it updates
+  `/var/guix/profiles/per-user/$USER/guix-profile`, and creates a symlink
+  targeting this directory at `$HOME/.guix-profile`
+
+Therefore, in order for these operations to affect your shell/desktop sessions
+(and for the principle of least astonishment to hold), their corresponding
+directories have to be added to well-known environment variables like `$PATH`,
+`$INFOPATH`, `$XDG_DATA_DIRS`, etc.
+
+In other words, if `$HOME/.config/guix/current/bin` does not exist in your
+`$PATH`, a `guix pull` will have no effect on what `guix` you are using. Same
+goes for `$HOME/.guix-profile/bin`, `guix install`, and installed packages.
+
+Helpfully, after a `guix pull` or `guix install`, a message will be printed like
+so:
+
+```
+hint: Consider setting the necessary environment variables by running:
+
+     GUIX_PROFILE="$HOME/.guix-profile"
+     . "$GUIX_PROFILE/etc/profile"
+
+Alternately, see `guix package --search-paths -p "$HOME/.guix-profile"'.
+```
+
+However, this is somewhat tedious to do for both `guix pull` and `guix install`
+for each user on the system that wants to properly use `guix`. I recommend that
+you instead add an entry to `/etc/profile.d` instead. This is done by default
+when installing the Debian package later than 1.2.0-4 and when using the shell
+script installer.
+
+#### Instructions
+
+Create `/etc/profile.d/guix.sh` with the following content:
+```sh
+# _GUIX_PROFILE: `guix pull` profile
+_GUIX_PROFILE="$HOME/.config/guix/current"
+if [ -L $_GUIX_PROFILE ]; then
+  export PATH="$_GUIX_PROFILE/bin${PATH:+:}$PATH"
+  # Export INFOPATH so that the updated info pages can be found
+  # and read by both /usr/bin/info and/or $GUIX_PROFILE/bin/info
+  # When INFOPATH is unset, add a trailing colon so that Emacs
+  # searches 'Info-default-directory-list'.
+  export INFOPATH="$_GUIX_PROFILE/share/info:$INFOPATH"
+fi
+
+# GUIX_PROFILE: User's default profile
+GUIX_PROFILE="$HOME/.guix-profile"
+[ -L $GUIX_PROFILE ] || return
+GUIX_LOCPATH="$GUIX_PROFILE/lib/locale"
+export GUIX_PROFILE GUIX_LOCPATH
+
+[ -f "$GUIX_PROFILE/etc/profile" ] && . "$GUIX_PROFILE/etc/profile"
+
+# set XDG_DATA_DIRS to include Guix installations
+export XDG_DATA_DIRS="$GUIX_PROFILE/share:${XDG_DATA_DIRS:-/usr/local/share/:/usr/share/}"
+```
+
+Please note that this will not take effect until the next shell or desktop
+session (log out and log back in).
+
+### `guix pull` as root
+
+Before you do this, you need to read the section on [choosing your security
+model][security-model] and adjust `guix` and `guix-daemon` flags according to
+your choice, as invoking `guix pull` may pull substitutes from substitute
+servers (which you may not want).
+
+As mentioned in a previous section, Guix expects
+`${localstatedir}/guix/profiles/per-user/root/current-guix` to be populated with
+`root`'s Guix profile, `guix pull`-ed and built by some former version of Guix.
+However, this is not the case when we build from source. Therefore, we need to
+perform a `guix pull` as `root`:
+
+```sh
+sudo --login guix pull --branch=version-<latest-release-version>
+# or
+sudo --login guix pull --commit=<particular-commit>
+```
+
+`guix pull` is quite a long process (especially if you're using
+`--no-substitutes`). If you encounter build problems, please refer to the
+[troubleshooting section](#troubleshooting).
+
+Note that running a bare `guix pull` with no commit or branch specified will
+pull the latest commit on Guix's master branch, which is likely fine, but not
+recommended.
+
+If you installed Guix from source, you may get an error like the following:
+```sh
+error: while creating symlink '/root/.config/guix/current' No such file or directory
+```
+To resolve this, simply:
+```
+sudo mkdir -p /root/.config/guix
+```
+Then try the `guix pull` command again.
+
+After the `guix pull` finishes successfully,
+`${localstatedir}/guix/profiles/per-user/root/current-guix` should be populated.
+
+#### Using the newly-pulled `guix` by restarting the daemon
+
+Depending on how you installed Guix, you should now make sure that your init
+scripts and service configurations point to the newly-pulled `guix-daemon`.
+
+##### If you built Guix from source
+
+If you followed the instructions for [fixing argv\[0\]][fix-argv0], you can now
+do the following:
+
+```sh
+systemctl stop guix-daemon-original
+systemctl disable guix-daemon-original
+
+systemctl enable guix-daemon
+systemctl start guix-daemon
+```
+
+Remember to set `--no-substitutes` in `$libdir/systemd/system/guix-daemon.service` and other customizations if you used them for `guix-daemon-original.service`.
+
+##### If you installed Guix via the Debian/Ubuntu distribution packages
+
+You will need to create a `guix-daemon-latest` service which points to the new
+`guix` rather than a pinned one.
+
+```sh
+# Create guix-daemon-latest.service by modifying guix-daemon.service
+sed -E -e "s|/usr/bin/guix-daemon|/var/guix/profiles/per-user/root/current-guix/bin/guix-daemon|" /etc/systemd/system/guix-daemon.service > /lib/systemd/system/guix-daemon-latest.service
+chmod 664 /lib/systemd/system/guix-daemon-latest.service
+
+# Make systemd recognize the new service
+systemctl daemon-reload
+
+# Make sure that the old guix-daemon.service is stopped and disabled
+systemctl stop guix-daemon
+systemctl disable guix-daemon
+
+# Make sure that the new guix-daemon-latest.service is started and enabled
+systemctl enable guix-daemon-latest
+systemctl start guix-daemon-latest
+```
+
+##### If you installed Guix via lantw44's Arch Linux AUR package
+
+At the time of writing (July 5th, 2021) the systemd unit for "updated Guix" is
+`guix-daemon-latest.service`, therefore, you should do the following:
+
+```sh
+systemctl stop guix-daemon
+systemctl disable guix-daemon
+
+systemctl enable guix-daemon-latest
+systemctl start guix-daemon-latest
+```
+
+##### Otherwise...
+
+Simply do:
+
+```sh
+systemctl restart guix-daemon
+```
+
+### Checking everything
+
+If you followed all the steps above to make your Guix setup "prim and proper,"
+you can check that you did everything properly by running through this
+checklist.
+
+1. `/etc/profile.d/guix.sh` should exist and be sourced at each shell login
+
+2. `guix describe` should not print `guix describe: error: failed to determine
+   origin`, but rather something like:
+
+   ```
+   Generation 38   Feb 22 2021 16:39:31    (current)
+     guix f350df4
+       repository URL: https://git.savannah.gnu.org/git/guix.git
+       branch: version-1.2.0
+       commit: f350df405fbcd5b9e27e6b6aa500da7f101f41e7
+   ```
+
+3. `guix-daemon` should be running from `${localstatedir}/guix/profiles/per-user/root/current-guix`
+
+# Troubleshooting
+
+## Derivation failed to build
+
+When you see a build failure like below:
+
+```
+building /gnu/store/...-foo-3.6.12.drv...
+/ 'check' phasenote: keeping build directory `/tmp/guix-build-foo-3.6.12.drv-0'
+builder for `/gnu/store/...-foo-3.6.12.drv' failed with exit code 1
+build of /gnu/store/...-foo-3.6.12.drv failed
+View build log at '/var/log/guix/drvs/../...-foo-3.6.12.drv.bz2'.
+cannot build derivation `/gnu/store/...-qux-7.69.1.drv': 1 dependencies couldn't be built
+cannot build derivation `/gnu/store/...-bar-3.16.5.drv': 1 dependencies couldn't be built
+cannot build derivation `/gnu/store/...-baz-2.0.5.drv': 1 dependencies couldn't be built
+guix time-machine: error: build of `/gnu/store/...-baz-2.0.5.drv' failed
+```
+
+It means that `guix` failed to build a package named `foo`, which was a
+dependency of `qux`, `bar`, and `baz`. Importantly, note that the last "failed"
+line is not necessarily the root cause, the first "failed" line is.
+
+Most of the time, the build failure is due to a spurious test failure or the
+package's build system/test suite breaking when running multi-threaded. To
+rebuild _just_ this derivation in a single-threaded fashion (please don't forget
+to add other `guix` flags like `--no-substitutes` as appropriate):
+
+```sh
+$ guix build --cores=1 /gnu/store/...-foo-3.6.12.drv
+```
+
+If the single-threaded rebuild did not succeed, you may need to dig deeper.
+You may view `foo`'s build logs in `less` like so (please replace paths with the
+path you see in the build failure output):
+
+```sh
+$ bzcat /var/log/guix/drvs/../...-foo-3.6.12.drv.bz2 | less
+```
+
+`foo`'s build directory is also preserved and available at
+`/tmp/guix-build-foo-3.6.12.drv-0`. However, if you fail to build `foo` multiple
+times, it may be `/tmp/...drv-1` or `/tmp/...drv-2`. Always consult the build
+failure output for the most accurate, up-to-date information.
+
+### python(-minimal): [Errno 84] Invalid or incomplete multibyte or wide character
+
+This error occurs when your `$TMPDIR` (default: /tmp) exists on a filesystem
+which rejects characters not present in the UTF-8 character code set. An example
+is ZFS with the utf8only=on option set.
+
+More information: https://github.com/python/cpython/issues/81765
+
+### openssl-1.1.1l and openssl-1.1.1n
+
+OpenSSL includes tests that will fail once some certificate has expired.
+The workarounds from the GnuTLS section immediately below can be used.
+
+### GnuTLS: test-suite FAIL: status-request-revoked
+
+*The derivation is likely identified by: `/gnu/store/vhphki5sg9xkdhh2pbc8gi6vhpfzryf0-gnutls-3.6.12.drv`*
+
+This unfortunate error is most common for non-substitute builders who installed
+Guix v1.2.0. The problem stems from the fact that one of GnuTLS's tests uses a
+hardcoded certificate which expired on 2020-10-24.
+
+What's more unfortunate is that this GnuTLS derivation is somewhat special in
+Guix's dependency graph and is not affected by the package transformation flags
+like `--without-tests=`.
+
+The easiest solution for those encountering this problem is to install a newer
+version of Guix. However, there are ways to work around this issue:
+
+#### Workaround 1: Using substitutes for this single derivation
+
+If you've authorized the official Guix build farm's key (more info
+[here](./README.md#step-1-authorize-the-signing-keys)), then you can use
+substitutes just for this single derivation by invoking the following:
+
+```sh
+guix build --substitute-urls="https://ci.guix.gnu.org" /gnu/store/vhphki5sg9xkdhh2pbc8gi6vhpfzryf0-gnutls-3.6.12.drv
+```
+
+See [this section](./README.md#removing-authorized-keys) for instructions on how
+to remove authorized keys if you don't want to keep the build farm's key
+authorized.
+
+#### Workaround 2: Temporarily setting the system clock back
+
+This workaround was described [here](https://issues.guix.gnu.org/44559#5).
+
+Basically:
+2. Turn off NTP
+3. Set system time to 2020-10-01
+4. guix build --no-substitutes /gnu/store/vhphki5sg9xkdhh2pbc8gi6vhpfzryf0-gnutls-3.6.12.drv
+5. Set system time back to accurate current time
+6. Turn NTP back on
+
+For example,
+
+```sh
+sudo timedatectl set-ntp no
+sudo date --set "01 oct 2020 15:00:00"
+guix build /gnu/store/vhphki5sg9xkdhh2pbc8gi6vhpfzryf0-gnutls-3.6.12.drv
+sudo timedatectl set-ntp yes
+```
+
+#### Workaround 3: Disable the tests in the Guix source code for this single derivation
+
+If all of the above workarounds fail, you can also disable the `tests` phase of
+the derivation via the `arguments` option, as described in the official
+[`package`
+reference](https://guix.gnu.org/manual/en/html_node/package-Reference.html).
+
+For example, to disable the openssl-1.1 check phase:
+
+```diff
+diff --git a/gnu/packages/tls.scm b/gnu/packages/tls.scm
+index f1e844b..1077c4b 100644
+--- a/gnu/packages/tls.scm
++++ b/gnu/packages/tls.scm
+@@ -494,4 +494,5 @@ (define-public openssl-1.1
+     (arguments
+      `(#:parallel-tests? #f
++       #:tests? #f
+        #:test-target "test"
+```
+
+### coreutils: FAIL: tests/tail-2/inotify-dir-recreate
+
+The inotify-dir-create test fails on "remote" filesystems such as overlayfs
+(Docker's default filesystem) due to the filesystem being mistakenly recognized
+as non-remote.
+
+A relatively easy workaround to this is to make sure that a somewhat traditional
+filesystem is mounted at `/tmp` (where `guix-daemon` performs its builds). For
+Docker users, this might mean [using a volume][docker/volumes], [binding
+mounting][docker/bind-mnt] from host, or (for those with enough RAM and swap)
+[mounting a tmpfs][docker/tmpfs] using the `--tmpfs` flag.
+
+Please see the following links for more details:
+
+- An upstream coreutils bug has been filed: [debbugs#47940](https://debbugs.gnu.org/cgi/bugreport.cgi?bug=47940)
+- A Guix bug detailing the underlying problem has been filed: [guix-issues#47935](https://issues.guix.gnu.org/47935), [guix-issues#49985](https://issues.guix.gnu.org/49985#5)
+- A commit to skip this test in Guix has been merged into the core-updates branch:
+  [savannah/guix@6ba1058](https://git.savannah.gnu.org/cgit/guix.git/commit/?id=6ba1058df0c4ce5611c2367531ae5c3cdc729ab4)
+
+
+[install-script]: #options-1-and-2-using-the-official-shell-installer-script-or-binary-tarball
+[install-bin-tarball]: #options-1-and-2-using-the-official-shell-installer-script-or-binary-tarball
+[install-distro-pkg]: #option-4-using-a-distribution-maintained-package
+[install-source]: #option-5-building-from-source
+
+[fix-argv0]: #creating-and-starting-a-guix-daemon-original-service-with-a-fixed-argv0
+[security-model]: ./README.md#choosing-your-security-model
+
+[docker/volumes]: https://docs.docker.com/storage/volumes/
+[docker/bind-mnt]: https://docs.docker.com/storage/bind-mounts/
+[docker/tmpfs]: https://docs.docker.com/storage/tmpfs/
+
+# Purging/Uninstalling Guix
+
+In the extraordinarily rare case where you messed up your Guix installation in
+an irreversible way, you may want to completely purge Guix from your system and
+start over.
+
+1. Uninstall Guix itself according to the way you installed it (e.g. `sudo apt
+   purge guix` for Ubuntu packaging, `sudo make uninstall` for a build from source).
+2. Remove all build users and groups
+
+   You may check for relevant users and groups using:
+
+   ```
+   getent passwd | grep guix
+   getent group | grep guix
+   ```
+
+   Then, you may remove users and groups using:
+
+   ```
+   sudo userdel <user>
+   sudo groupdel <group>
+   ```
+
+3. Remove all possible Guix-related directories
+   - `/var/guix/`
+   - `/var/log/guix/`
+   - `/gnu/`
+   - `/etc/guix/`
+   - `/home/*/.config/guix/`
+   - `/home/*/.cache/guix/`
+   - `/home/*/.guix-profile/`
+   - `/root/.config/guix/`
+   - `/root/.cache/guix/`
+   - `/root/.guix-profile/`
diff --git a/contrib/guix/README.md b/contrib/guix/README.md
new file mode 100644
index 000000000..83f42c1b6
--- /dev/null
+++ b/contrib/guix/README.md
@@ -0,0 +1,345 @@
+# Bootstrappable Monero Builds
+
+This directory contains the files necessary to perform bootstrappable Monero 
+builds.
+
+[Bootstrappability][b17e] furthers our binary security guarantees by allowing us
+to _audit and reproduce_ our toolchain instead of blindly _trusting_ binary
+downloads.
+
+We achieve bootstrappability by using Guix as a functional package manager.
+
+# Requirements
+
+Conservatively, you will need an x86_64 machine with:
+
+- 16GB of free disk space on the partition that /gnu/store will reside in
+- 8GB of free disk space **per platform triple** you're planning on building
+  (see the `HOSTS` [environment variable description][env-vars-list])
+
+# Installation and Setup
+
+If you don't have Guix installed and set up, please follow the instructions in
+[INSTALL.md](./INSTALL.md)
+
+# Usage
+
+If you haven't considered your security model yet, please read [the relevant
+section](#choosing-your-security-model) before proceeding to perform a build.
+
+## Building
+
+*The author highly recommends at least reading over the [common usage patterns
+and examples](#common-guix-build-invocation-patterns-and-examples) section below
+before starting a build. For a full list of customization options, see the
+[recognized environment variables][env-vars-list] section.*
+
+To build Monero reproducibly with all default options, invoke the
+following from the top of a clean repository:
+
+```sh
+./contrib/guix/guix-build
+```
+
+## Cleaning intermediate work directories
+
+By default, `guix-build` leaves all intermediate files or "work directories"
+(e.g. `depends/work`, `guix-build-*/distsrc-*`) intact at the end of a build so
+that they are available to the user (to aid in debugging, etc.). However, these
+directories usually take up a large amount of disk space. Therefore, a
+`guix-clean` convenience script is provided which cleans the current `git`
+worktree to save disk space:
+
+```
+./contrib/guix/guix-clean
+```
+
+## Attesting to build outputs
+
+Much like how Gitian build outputs are attested to in a `gitian.sigs`
+repository, Guix build outputs are attested to in the [`guix.sigs`
+repository](https://github.com/monero-project/guix.sigs).
+
+After you've cloned the `guix.sigs` repository, to attest to the current
+worktree's commit/tag:
+
+```
+env GUIX_SIGS_REPO=<path/to/guix.sigs> SIGNER=<gpg-key-name> ./contrib/guix/guix-attest
+```
+
+See `./contrib/guix/guix-attest --help` for more information on the various ways
+`guix-attest` can be invoked.
+
+## Verifying build output attestations
+
+After at least one other signer has uploaded their signatures to the `guix.sigs`
+repository:
+
+```
+git -C <path/to/guix.sigs> pull
+env GUIX_SIGS_REPO=<path/to/guix.sigs> ./contrib/guix/guix-verify
+```
+
+## Common `guix-build` invocation patterns and examples
+
+### Keeping caches outside of the worktree
+
+If you perform a lot of builds and have a bunch of worktrees, you may find it
+more efficient to keep the depends tree's download cache and build cache
+outside of the worktrees to avoid duplicate downloads and unnecessary builds. To
+help with this situation, the `guix-build` script honours the `SOURCES_PATH`,
+`BASE_CACHE` environment variables and will pass them on to the
+depends tree so that you can do something like:
+
+```sh
+env SOURCES_PATH="$HOME/depends-SOURCES_PATH" BASE_CACHE="$HOME/depends-BASE_CACHE" ./contrib/guix/guix-build
+```
+
+Note that the paths that these environment variables point to **must be
+directories**, and **NOT symlinks to directories**.
+
+See the [recognized environment variables][env-vars-list] section for more
+details.
+
+### Building a subset of platform triples
+
+Sometimes you only want to build a subset of the supported platform triples, in
+which case you can override the default list by setting the space-separated
+`HOSTS` environment variable:
+
+```sh
+env HOSTS='x86_64-w64-mingw32 x86_64-apple-darwin' ./contrib/guix/guix-build
+```
+
+See the [recognized environment variables][env-vars-list] section for more
+details.
+
+### Controlling the number of threads used by `guix` build commands
+
+Depending on your system's RAM capacity, you may want to decrease the number of
+threads used to decrease RAM usage or vice versa.
+
+By default, the scripts under `./contrib/guix` will invoke all `guix` build
+commands with `--cores="$JOBS"`. Note that `$JOBS` defaults to `$(nproc)` if not
+specified. However, astute manual readers will also notice that `guix` build
+commands also accept a `--max-jobs=` flag (which defaults to 1 if unspecified).
+
+Here is the difference between `--cores=` and `--max-jobs=`:
+
+> Note: When I say "derivation," think "package"
+
+`--cores=`
+
+- controls the number of CPU cores to build each derivation. This is the value
+  passed to `make`'s `--jobs=` flag.
+
+`--max-jobs=`
+
+- controls how many derivations can be built in parallel
+- defaults to 1
+
+Therefore, the default is for `guix` build commands to build one derivation at a
+time, utilizing `$JOBS` threads.
+
+Specifying the `$JOBS` environment variable will only modify `--cores=`, but you
+can also modify the value for `--max-jobs=` by specifying
+`$ADDITIONAL_GUIX_COMMON_FLAGS`. For example, if you have a LOT of memory, you
+may want to set:
+
+```sh
+export ADDITIONAL_GUIX_COMMON_FLAGS='--max-jobs=8'
+```
+
+Which allows for a maximum of 8 derivations to be built at the same time, each
+utilizing `$JOBS` threads.
+
+Or, if you'd like to avoid spurious build failures caused by issues with
+parallelism within a single package, but would still like to build multiple
+packages when the dependency graph allows for it, you may want to try:
+
+```sh
+export JOBS=1 ADDITIONAL_GUIX_COMMON_FLAGS='--max-jobs=8'
+```
+
+See the [recognized environment variables][env-vars-list] section for more
+details.
+
+## Recognized environment variables
+
+* _**HOSTS**_
+
+  Override the space-separated list of platform triples for which to perform a
+  bootstrappable build.
+
+  _(defaults to "x86\_64-linux-gnu arm-linux-gnueabihf aarch64-linux-gnu
+  riscv64-linux-gnu powerpc64-linux-gnu powerpc64le-linux-gnu
+  x86\_64-w64-mingw32 x86\_64-apple-darwin arm64-apple-darwin")_
+
+* _**SOURCES_PATH**_
+
+  Set the depends tree download cache for sources. This is passed through to the
+  depends tree. Setting this to the same directory across multiple builds of the
+  depends tree can eliminate unnecessary redownloading of package sources.
+
+  The path that this environment variable points to **must be a directory**, and
+  **NOT a symlink to a directory**.
+
+* _**BASE_CACHE**_
+
+  Set the depends tree cache for built packages. This is passed through to the
+  depends tree. Setting this to the same directory across multiple builds of the
+  depends tree can eliminate unnecessary building of packages.
+
+  The path that this environment variable points to **must be a directory**, and
+  **NOT a symlink to a directory**.
+
+* _**JOBS**_
+
+  Override the number of jobs to run simultaneously, you might want to do so on
+  a memory-limited machine. This may be passed to:
+
+    - `guix` build commands as in `guix shell --cores="$JOBS"`
+    - `make` as in `make --jobs="$JOBS"`
+    - `xargs` as in `xargs -P"$JOBS"`
+
+  See [here](#controlling-the-number-of-threads-used-by-guix-build-commands) for
+  more details.
+
+  _(defaults to the value of `nproc` outside the container)_
+
+* _**SOURCE_DATE_EPOCH**_
+
+  Override the reference UNIX timestamp used for bit-for-bit reproducibility,
+  the variable name conforms to [standard][r12e/source-date-epoch].
+
+  _(defaults to the output of `$(git log --format=%at -1)`)_
+
+* _**V**_
+
+  If non-empty, will pass `V=1` to all `make` invocations, making `make` output
+  verbose.
+
+  Note that any given value is ignored. The variable is only checked for
+  emptiness. More concretely, this means that `V=` (setting `V` to the empty
+  string) is interpreted the same way as not setting `V` at all, and that `V=0`
+  has the same effect as `V=1`.
+
+* _**SUBSTITUTE_URLS**_
+
+  A whitespace-delimited list of URLs from which to download pre-built packages.
+  A URL is only used if its signing key is authorized (refer to the [substitute
+  servers section](#option-1-building-with-substitutes) for more details).
+
+* _**ADDITIONAL_GUIX_COMMON_FLAGS**_
+
+  Additional flags to be passed to all `guix` commands.
+
+* _**ADDITIONAL_GUIX_TIMEMACHINE_FLAGS**_
+
+  Additional flags to be passed to `guix time-machine`.
+
+* _**ADDITIONAL_GUIX_ENVIRONMENT_FLAGS**_
+
+  Additional flags to be passed to the invocation of `guix shell` inside
+  `guix time-machine`.
+
+# Choosing your security model
+
+No matter how you installed Guix, you need to decide on your security model for
+building packages with Guix.
+
+Guix allows us to achieve better binary security by using our CPU time to build
+everything from scratch. However, it doesn't sacrifice user choice in pursuit of
+this: users can decide whether or not to use **substitutes** (pre-built
+packages).
+
+## Option 1: Building with substitutes
+
+### Step 1: Authorize the signing keys
+
+Depending on the installation procedure you followed, you may have already
+authorized the Guix build farm key. In particular, the official shell installer
+script asks you if you want the key installed, and the debian distribution
+package authorized the key during installation.
+
+You can check the current list of authorized keys at `/etc/guix/acl`.
+
+At the time of writing, a `/etc/guix/acl` with just the Guix build farm key
+authorized looks something like:
+
+```lisp
+(acl
+ (entry
+  (public-key
+   (ecc
+    (curve Ed25519)
+    (q #8D156F295D24B0D9A86FA5741A840FF2D24F60F7B6C4134814AD55625971B394#)
+    )
+   )
+  (tag
+   (guix import)
+   )
+  )
+ )
+```
+
+If you've determined that the official Guix build farm key hasn't been
+authorized, and you would like to authorize it, run the following as root:
+
+```
+guix archive --authorize < /var/guix/profiles/per-user/root/current-guix/share/guix/ci.guix.gnu.org.pub
+```
+
+If
+`/var/guix/profiles/per-user/root/current-guix/share/guix/ci.guix.gnu.org.pub`
+doesn't exist, try:
+
+```sh
+guix archive --authorize < <PREFIX>/share/guix/ci.guix.gnu.org.pub
+```
+
+Where `<PREFIX>` is likely:
+- `/usr` if you installed from a distribution package
+- `/usr/local` if you installed Guix from source and didn't supply any
+  prefix-modifying flags to Guix's `./configure`
+
+#### Removing authorized keys
+
+To remove previously authorized keys, simply edit `/etc/guix/acl` and remove the
+`(entry (public-key ...))` entry.
+
+### Step 2: Specify the substitute servers
+
+Once its key is authorized, the official Guix build farm at
+https://ci.guix.gnu.org is automatically used unless the `--no-substitutes` flag
+is supplied. This default list of substitute servers is overridable both on a
+`guix-daemon` level and when you invoke `guix` commands.
+
+## Option 2: Disabling substitutes on an ad-hoc basis
+
+If you prefer not to use any substitutes, make sure to supply `--no-substitutes`
+like in the following snippet. The first build will take a while, but the
+resulting packages will be cached for future builds.
+
+For direct invocations of `guix`:
+```sh
+guix <cmd> --no-substitutes
+```
+
+For the scripts under `./contrib/guix/`:
+```sh
+export ADDITIONAL_GUIX_COMMON_FLAGS='--no-substitutes'
+```
+
+## Option 3: Disabling substitutes by default
+
+`guix-daemon` accepts a `--no-substitutes` flag, which will make sure that,
+unless otherwise overridden by a command line invocation, no substitutes will be
+used.
+
+If you start `guix-daemon` using an init script, you can edit said script to
+supply this flag.
+
+[b17e]: https://bootstrappable.org/
+[r12e/source-date-epoch]: https://reproducible-builds.org/docs/source-date-epoch/
+[env-vars-list]: #recognized-environment-variables
diff --git a/contrib/guix/guix-attest b/contrib/guix/guix-attest
new file mode 100755
index 000000000..c7398fb45
--- /dev/null
+++ b/contrib/guix/guix-attest
@@ -0,0 +1,197 @@
+#!/usr/bin/env bash
+export LC_ALL=C
+set -e -o pipefail
+
+# Source the common prelude, which:
+#   1. Checks if we're at the top directory of the monero repository
+#   2. Defines a few common functions and variables
+#
+# shellcheck source=libexec/prelude.bash
+source "$(dirname "${BASH_SOURCE[0]}")/libexec/prelude.bash"
+
+
+###################
+## Sanity Checks ##
+###################
+
+################
+# Required non-builtin commands should be invokable
+################
+
+check_tools cat env basename mkdir diff sort xargs tee
+
+if [ -z "$NO_SIGN" ]; then
+    # make it possible to override the gpg binary
+    GPG=${GPG:-gpg}
+
+    # $GPG can contain extra arguments passed to the binary
+    # so let's check only the existence of arg[0]
+    # shellcheck disable=SC2206
+    GPG_ARRAY=($GPG)
+    check_tools "${GPG_ARRAY[0]}"
+fi
+
+################
+# Required env vars should be non-empty
+################
+
+cmd_usage() {
+cat <<EOF
+Synopsis:
+
+    env GUIX_SIGS_REPO=<path/to/guix.sigs> \\
+        SIGNER=GPG_KEY_NAME[=SIGNER_NAME] \\
+        [ NO_SIGN=1 ]
+      ./contrib/guix/guix-attest
+
+Example w/o overriding signing name:
+
+    env GUIX_SIGS_REPO=/home/user/guix.sigs \\
+        SIGNER=achow101 \\
+      ./contrib/guix/guix-attest
+
+Example overriding signing name:
+
+    env GUIX_SIGS_REPO=/home/user/guix.sigs \\
+        SIGNER=0x96AB007F1A7ED999=dongcarl \\
+      ./contrib/guix/guix-attest
+
+Example w/o signing, just creating SHA256SUMS:
+
+    env GUIX_SIGS_REPO=/home/user/guix.sigs \\
+        SIGNER=achow101 \\
+        NO_SIGN=1 \\
+      ./contrib/guix/guix-attest
+
+EOF
+}
+
+if [ -z "$GUIX_SIGS_REPO" ] || [ -z "$SIGNER" ]; then
+    cmd_usage
+    exit 1
+fi
+
+################
+# GUIX_SIGS_REPO should exist as a directory
+################
+
+if [ ! -d "$GUIX_SIGS_REPO" ]; then
+cat << EOF
+ERR: The specified GUIX_SIGS_REPO is not an existent directory:
+
+    '$GUIX_SIGS_REPO'
+
+Hint: Please clone the guix.sigs repository and point to it with the
+      GUIX_SIGS_REPO environment variable.
+
+EOF
+cmd_usage
+exit 1
+fi
+
+################
+# The key specified in SIGNER should be usable
+################
+
+IFS='=' read -r gpg_key_name signer_name <<< "$SIGNER"
+if [ -z "${signer_name}" ]; then
+    signer_name="$gpg_key_name"
+fi
+
+if [ -z "$NO_SIGN" ] && ! ${GPG} --dry-run --list-secret-keys "${gpg_key_name}" >/dev/null 2>&1; then
+    echo "ERR: GPG can't seem to find any key named '${gpg_key_name}'"
+    exit 1
+fi
+
+##############
+##  Attest  ##
+##############
+
+# Usage: out_name $logdir
+#
+#   HOST: The output directory being attested
+#
+out_name() {
+    basename "$(dirname "$1")"
+}
+
+shasum_already_exists() {
+cat <<EOF
+--
+
+ERR: An ${1} file already exists for '${VERSION}' and attests
+     differently. You likely previously attested to a partial build (e.g. one
+     where you specified the HOST environment variable).
+
+     See the diff above for more context.
+
+Hint: You may wish to remove the existing attestations and their signatures by
+      invoking:
+
+          rm '${PWD}/${1}'{,.asc}
+
+      Then try running this script again.
+
+EOF
+}
+
+echo "Attesting to build outputs for version: '${VERSION}'"
+
+# Given a SHA256SUMS file as stdin that has lines like:
+#     0ba536819b221a91d3d42e978be016aac918f40984754d74058aa0c921cd3ea6  a/b/d/c/d/s/monero-aarch64-apple-darwin-v0.18.3.2.tar.bz2
+#     ...
+#
+# Replace each line's file name with its basename:
+#     0ba536819b221a91d3d42e978be016aac918f40984754d74058aa0c921cd3ea6  monero-aarch64-apple-darwin-v0.18.3.2.tar.bz2
+#     ...
+#
+basenameify_SHA256SUMS() {
+    sed -E 's@(^[[:xdigit:]]{64}[[:space:]]+).+/([^/]+$)@\1\2@'
+}
+
+outsigdir="$GUIX_SIGS_REPO/$VERSION/$signer_name"
+mkdir -p "$outsigdir"
+(
+    cd "$outsigdir"
+
+    temp_all="$(mktemp)"
+    trap 'rm -rf -- "$temp_all"' EXIT
+
+    echo "Looking for build output SHA256SUMS fragments in ${LOGDIR_BASE}"
+    all_fragments=$(find "$LOGDIR_BASE" -name "SHA256SUMS.part" -print0 | xargs -0 sort -u /dev/null | basenameify_SHA256SUMS | sort -k2 | tee "$temp_all")
+
+    if [ -z "${all_fragments}" ]; then
+        echo "ERR: Could not find any build output SHA256SUMS fragments in ${LOGDIR_BASE}"
+        exit 1
+    fi
+
+    all_file="all.SHA256SUMS"
+    if [ -e "$all_file" ]; then
+        # The SHA256SUMS already exists, make sure it's exactly what we
+        # expect, error out if not
+        if diff -u ${all_file} "$temp_all"; then
+            echo "A ${all_file} file already exists for '${VERSION}' and is up-to-date."
+        else
+            shasum_already_exists "$all_file"
+            exit 1
+        fi
+    else
+        mv "$temp_all" "$all_file"
+    fi
+
+    if [ -z "$NO_SIGN" ]; then
+        echo "Signing ${all_file} to produce ${all_file}.asc"
+
+        if [ ! -e "$all_file".asc ]; then
+            ${GPG} --detach-sign \
+                   --digest-algo sha256 \
+                   --local-user "$gpg_key_name" \
+                   --armor \
+                   --output "$all_file".asc "$all_file"
+        else
+            echo "Signature already there"
+        fi
+    else
+        echo "Not signing ${all_file} as \$NO_SIGN is not empty"
+    fi
+)
diff --git a/contrib/guix/guix-build b/contrib/guix/guix-build
new file mode 100755
index 000000000..76b7b03d3
--- /dev/null
+++ b/contrib/guix/guix-build
@@ -0,0 +1,467 @@
+#!/usr/bin/env bash
+export LC_ALL=C
+set -e -o pipefail
+
+# Source the common prelude, which:
+#   1. Checks if we're at the top directory of the Monero repository
+#   2. Defines a few common functions and variables
+#
+# shellcheck source=libexec/prelude.bash
+source "$(dirname "${BASH_SOURCE[0]}")/libexec/prelude.bash"
+
+###################
+## SANITY CHECKS ##
+###################
+
+################
+# Required non-builtin commands should be invocable
+################
+
+check_tools cat mkdir make getent curl git guix
+
+################
+# GUIX_BUILD_OPTIONS should be empty
+################
+#
+# GUIX_BUILD_OPTIONS is an environment variable recognized by guix commands that
+# can perform builds. This seems like what we want instead of
+# ADDITIONAL_GUIX_COMMON_FLAGS, but the value of GUIX_BUILD_OPTIONS is actually
+# _appended_ to normal command-line options. Meaning that they will take
+# precedence over the command-specific ADDITIONAL_GUIX_<CMD>_FLAGS.
+#
+# This seems like a poor user experience. Thus we check for GUIX_BUILD_OPTIONS's
+# existence here and direct users of this script to use our (more flexible)
+# custom environment variables.
+if [ -n "$GUIX_BUILD_OPTIONS" ]; then
+cat << EOF
+Error: Environment variable GUIX_BUILD_OPTIONS is not empty:
+  '$GUIX_BUILD_OPTIONS'
+
+Unfortunately this script is incompatible with GUIX_BUILD_OPTIONS, please unset
+GUIX_BUILD_OPTIONS and use ADDITIONAL_GUIX_COMMON_FLAGS to set build options
+across guix commands or ADDITIONAL_GUIX_<CMD>_FLAGS to set build options for a
+specific guix command.
+
+See contrib/guix/README.md for more details.
+EOF
+exit 1
+fi
+
+################
+# Checkout git submodules if we haven't already
+################
+
+git submodule update --init --recursive --progress
+
+################
+# The git worktree should not be dirty
+################
+
+if ! git diff-index --quiet HEAD -- && [ -z "$FORCE_DIRTY_WORKTREE" ]; then
+cat << EOF
+ERR: The current git worktree is dirty, which may lead to broken builds.
+
+     Aborting...
+
+Hint: To make your git worktree clean, You may want to:
+      1. Commit your changes,
+      2. Stash your changes, or
+      3. Set the 'FORCE_DIRTY_WORKTREE' environment variable if you insist on
+         using a dirty worktree
+EOF
+exit 1
+fi
+
+mkdir -p "$VERSION_BASE"
+
+################
+# Build directories should not exist
+################
+
+# Default to building for all supported HOSTs (overridable by environment)
+export HOSTS="${HOSTS:-x86_64-linux-gnu
+                       aarch64-linux-gnu
+                       arm-linux-gnueabihf
+                       riscv64-linux-gnu
+                       i686-linux-gnu
+                       x86_64-w64-mingw32
+                       x86_64-unknown-freebsd
+                       x86_64-apple-darwin
+                       aarch64-apple-darwin
+                       aarch64-linux-android
+                       arm-linux-androideabi}"
+
+# Usage: distsrc_for_host HOST
+#
+#   HOST: The current platform triple we're building for
+#
+distsrc_for_host() {
+    echo "${DISTSRC_BASE}/build/distsrc-${VERSION}-${1}"
+}
+
+# Accumulate a list of build directories that already exist...
+hosts_distsrc_exists=""
+for host in $HOSTS; do
+    if [ -e "$(distsrc_for_host "$host")" ]; then
+        hosts_distsrc_exists+=" ${host}"
+    fi
+done
+
+if [ -n "$hosts_distsrc_exists" ]; then
+# ...so that we can print them out nicely in an error message
+cat << EOF
+ERR: Build directories for this commit already exist for the following platform
+     triples you're attempting to build, probably because of previous builds.
+     Please remove, or otherwise deal with them prior to starting another build.
+
+     Aborting...
+
+Hint: To blow everything away, you may want to use:
+
+  $ ./contrib/guix/guix-clean
+
+Specifically, this will remove all files without an entry in the index,
+excluding the depends download cache, the depends built
+packages cache, the garbage collector roots for Guix environments, and the
+output directory.
+EOF
+for host in $hosts_distsrc_exists; do
+    echo "     ${host} '$(distsrc_for_host "$host")'"
+done
+exit 1
+else
+    mkdir -p "$DISTSRC_BASE"
+fi
+
+################
+# Check that we can connect to the guix-daemon
+################
+
+cat << EOF
+Checking that we can connect to the guix-daemon...
+
+Hint: If this hangs, you may want to try turning your guix-daemon off and on
+      again.
+
+EOF
+if ! guix gc --list-failures > /dev/null; then
+cat << EOF
+
+ERR: Failed to connect to the guix-daemon, please ensure that one is running and
+     reachable.
+EOF
+exit 1
+fi
+
+# Developer note: we could use `guix repl` for this check and run:
+#
+#     (import (guix store)) (close-connection (open-connection))
+#
+# However, the internal API is likely to change more than the CLI invocation
+
+################
+# Services database must have basic entries
+################
+
+if ! getent services http https ftp > /dev/null 2>&1; then
+cat << EOF
+ERR: Your system's C library cannot find service database entries for at least
+     one of the following services: http, https, ftp.
+
+Hint: Most likely, /etc/services does not exist yet (common for docker images
+      and minimal distros), or you don't have permissions to access it.
+
+      If /etc/services does not exist yet, you may want to install the
+      appropriate package for your distro which provides it.
+
+          On Debian/Ubuntu: netbase
+          On Arch Linux: iana-etc
+
+      For more information, see: getent(1), services(5)
+
+EOF
+
+fi
+
+#########
+# SETUP #
+#########
+
+# Determine the maximum number of jobs to run simultaneously (overridable by
+# environment)
+JOBS="${JOBS:-$(nproc)}"
+
+# Usage: host_to_commonname HOST
+#
+#   HOST: The current platform triple we're building for
+#
+host_to_commonname() {
+    case "$1" in
+        *darwin*)  echo osx ;;
+        *mingw*)   echo win ;;
+        *android*) echo android ;;
+        *linux*)   echo linux ;;
+        *freebsd*) echo freebsd ;;
+        *)         exit 1 ;;
+    esac
+}
+
+COMMIT_TIMESTAMP="$(git -c log.showSignature=false log --format=%at -1)"
+
+# Precious directories are those which should not be cleaned between successive
+# guix builds
+depends_precious_dir_names='SOURCES_PATH BASE_CACHE'
+precious_dir_names="${depends_precious_dir_names} OUTDIR_BASE LOGDIR_BASE PROFILES_BASE"
+
+# Usage: contains IFS-SEPARATED-LIST ITEM
+contains() {
+    for i in ${1}; do
+        if [ "$i" = "${2}" ]; then
+            return 0  # Found!
+        fi
+    done
+    return 1
+}
+
+# If the user explicitly specified a precious directory, create it so we
+# can map it into the container
+for precious_dir_name in $precious_dir_names; do
+    precious_dir_path="${!precious_dir_name}"
+    if [ -n "$precious_dir_path" ]; then
+        if [ ! -e "$precious_dir_path" ]; then
+            mkdir -p "$precious_dir_path"
+        elif [ -L "$precious_dir_path" ]; then
+            echo "ERR: ${precious_dir_name} cannot be a symbolic link"
+            exit 1
+        elif [ ! -d "$precious_dir_path" ]; then
+            echo "ERR: ${precious_dir_name} must be a directory"
+            exit 1
+        fi
+    fi
+done
+
+mkdir -p "$VAR_BASE"
+
+# Record the _effective_ values of precious directories such that guix-clean can
+# avoid clobbering them if appropriate.
+#
+# shellcheck disable=SC2046,SC2086
+{
+    # Get precious dir definitions from depends and the environment
+    for precious_dir_name in $precious_dir_names; do
+        if contains "$depends_precious_dir_names" "$precious_dir_name"; then
+            precious_dir_path="$(make -C "${PWD}/contrib/depends" --no-print-directory print-${precious_dir_name})"
+        else
+            precious_dir_path="${!precious_dir_name}"
+        fi
+        echo "${precious_dir_name}=${precious_dir_path}"
+    done
+} > "${VAR_BASE}/precious_dirs"
+
+# Make sure an output and logs directory exists for our builds
+OUTDIR_BASE="${OUTDIR_BASE:-${VERSION_BASE}/output}"
+mkdir -p "$OUTDIR_BASE"
+LOGDIR_BASE="${LOGDIR_BASE:-${VERSION_BASE}/logs}"
+mkdir -p "$LOGDIR_BASE"
+
+# Download the depends sources now as we won't have internet access in the build
+# container
+for host in $HOSTS; do
+    make -C "${PWD}/contrib/depends" -j"$JOBS" download-"$(host_to_commonname "${host}")" ${V:+V=1} ${SOURCES_PATH:+SOURCES_PATH="$SOURCES_PATH"}
+done
+
+# Usage: outdir_for_host HOST
+#
+#   HOST: The current platform triple we're building for
+#
+outdir_for_host() {
+    echo "${OUTDIR_BASE}/${1}"
+}
+
+# Usage: logdir_for_host HOST
+#
+#   HOST: The current platform triple we're building for
+#
+logdir_for_host() {
+    echo "${LOGDIR_BASE}/${1}"
+}
+
+# Usage: profiledir_for_host HOST
+#
+#   HOST: The current platform triple we're building for
+#
+profiledir_for_host() {
+    echo "${PROFILES_BASE}/${1}"
+}
+
+
+#########
+# BUILD #
+#########
+
+# Function to be called when building for host ${1} and the user interrupts the
+# build
+int_trap() {
+cat << EOF
+** INT received while building ${1}, you may want to clean up the relevant
+   work directories (e.g. distsrc-*) before rebuilding
+
+Hint: To blow everything away, you may want to use:
+
+  $ ./contrib/guix/guix-clean
+
+Specifically, this will remove all files without an entry in the index,
+excluding the depends download cache, the depends built
+packages cache, the garbage collector roots for Guix environments, and the
+output directory.
+EOF
+}
+
+# Deterministically build Monero
+# shellcheck disable=SC2153
+for host in $HOSTS; do
+
+    # Display proper warning when the user interrupts the build
+    trap 'int_trap ${host}' INT
+
+    (
+        # Required for 'contrib/guix/manifest.scm' to output the right manifest
+        # for the particular $HOST we're building for
+        export HOST="$host"
+
+
+        # shellcheck disable=SC2030
+cat << EOF
+INFO: Building ${VERSION:?not set} for platform triple ${HOST:?not set}:
+      ...using commit timestamp: ${COMMIT_TIMESTAMP:?not set}
+      ...running at most ${JOBS:?not set} jobs
+      ...from worktree directory: '${PWD}'
+          ...bind-mounted in container to: '/monero'
+      ...in build directory: '$(distsrc_for_host "$HOST")'
+          ...bind-mounted in container to: '$(DISTSRC_BASE=/distsrc-base && distsrc_for_host "$HOST")'
+      ...outputting in: '$(outdir_for_host "$HOST")'
+          ...bind-mounted in container to: '$(OUTDIR_BASE=/outdir-base && outdir_for_host "$HOST")'
+EOF
+
+        rm -f "$(profiledir_for_host "${HOST}")"
+
+        # First run produces a different GUIX_ENVIRONMENT.
+        time-machine environment --manifest="${PWD}/contrib/guix/manifest.scm" \
+                                 --container \
+                                 --pure \
+                                 --no-cwd \
+                                 --cores="$JOBS" \
+                                 --keep-failed \
+                                 --fallback \
+                                 ${SUBSTITUTE_URLS:+--substitute-urls="$SUBSTITUTE_URLS"} \
+                                 ${ADDITIONAL_GUIX_COMMON_FLAGS} ${ADDITIONAL_GUIX_ENVIRONMENT_FLAGS} \
+                                 -- echo "$HOST"
+
+        # Useful for CI environments where you only want to build Guix packages so they
+        # can be cached. Currently unused.
+        if [[ -v DRY_RUN ]]; then
+            echo "Dry run, exiting.."
+            exit 0
+        fi
+
+        # Run the build script 'contrib/guix/libexec/build.sh' in the build
+        # container specified by 'contrib/guix/manifest.scm'.
+        #
+        # Explanation of `guix environment` flags:
+        #
+        #   --container        run command within an isolated container
+        #
+        #     Running in an isolated container minimizes build-time differences
+        #     between machines and improves reproducibility
+        #
+        #   --pure             unset existing environment variables
+        #
+        #     Same rationale as --container
+        #
+        #   --no-cwd           do not share current working directory with an
+        #                      isolated container
+        #
+        #     When --container is specified, the default behavior is to share
+        #     the current working directory with the isolated container at the
+        #     same exact path (e.g. mapping '/home/user/monero/' to
+        #     '/home/user/monero/'). This means that the $PWD inside the
+        #     container becomes a source of irreproducibility. --no-cwd disables
+        #     this behaviour.
+        #
+        #   --share=SPEC       for containers, share writable host file system
+        #                      according to SPEC
+        #
+        #   --share="$PWD"=/monero
+        #
+        #                     maps our current working directory to /monero
+        #                     inside the isolated container, which we later cd
+        #                     into.
+        #
+        #     While we don't want to map our current working directory to the
+        #     same exact path (as this introduces irreproducibility), we do want
+        #     it to be at a _fixed_ path _somewhere_ inside the isolated
+        #     container so that we have something to build. '/monero' was
+        #     chosen arbitrarily.
+        #
+        #   ${SOURCES_PATH:+--share="$SOURCES_PATH"}
+        #
+        #                     make the downloaded depends sources path available
+        #                     inside the isolated container
+        #
+        #     The isolated container has no network access as it's in a
+        #     different network namespace from the main machine, so we have to
+        #     make the downloaded depends sources available to it. The sources
+        #     should have been downloaded prior to this invocation.
+        #
+        #   --keep-failed     keep build tree of failed builds
+        #
+        #     When builds of the Guix environment itself (not Monero)
+        #     fail, it is useful for the build tree to be kept for debugging
+        #     purposes.
+        #
+        #  ${SUBSTITUTE_URLS:+--substitute-urls="$SUBSTITUTE_URLS"}
+        #
+        #                     fetch substitute from SUBSTITUTE_URLS if they are
+        #                     authorized
+        #
+        #    Depending on the user's security model, it may be desirable to use
+        #    substitutes (pre-built packages) from servers that the user trusts.
+        #    Please read the README.md in the same directory as this file for
+        #    more information.
+        #
+        # shellcheck disable=SC2086,SC2031
+        time-machine environment --manifest="${PWD}/contrib/guix/manifest.scm" \
+                                 --container \
+                                 --pure \
+                                 --no-cwd \
+                                 --share="$PWD"=/monero \
+                                 --share="$DISTSRC_BASE"=/distsrc-base \
+                                 --share="$OUTDIR_BASE"=/outdir-base \
+                                 --share="$LOGDIR_BASE"=/logdir-base \
+                                 --expose="$(git rev-parse --git-common-dir)" \
+                                 ${SOURCES_PATH:+--share="$SOURCES_PATH"} \
+                                 ${BASE_CACHE:+--share="$BASE_CACHE"} \
+                                 --cores="$JOBS" \
+                                 --keep-failed \
+                                 --fallback \
+                                 --link-profile \
+                                 --user="user" \
+                                 --root="$(profiledir_for_host "${HOST}")" \
+                                 ${SUBSTITUTE_URLS:+--substitute-urls="$SUBSTITUTE_URLS"} \
+                                 ${ADDITIONAL_GUIX_COMMON_FLAGS} ${ADDITIONAL_GUIX_ENVIRONMENT_FLAGS} \
+                                 -- env HOST="$HOST" \
+                                        VERSION="$VERSION" \
+                                        JOBS="$JOBS" \
+                                        COMMIT_TIMESTAMP="${COMMIT_TIMESTAMP:?unable to determine value}" \
+                                        ${V:+V=1} \
+                                        ${DEPENDS_ONLY:+DEPENDS_ONLY=1} \
+                                        ${SOURCES_PATH:+SOURCES_PATH="$SOURCES_PATH"} \
+                                        ${BASE_CACHE:+BASE_CACHE="$BASE_CACHE"} \
+                                        DISTSRC="$(DISTSRC_BASE=/distsrc-base && distsrc_for_host "$host")" \
+                                        OUTDIR="$(OUTDIR_BASE=/outdir-base && outdir_for_host "$host")" \
+                                        LOGDIR="$(LOGDIR_BASE=/logdir-base && logdir_for_host "$host")" \
+                                        DIST_ARCHIVE_BASE=/outdir-base/dist-archive \
+                                      bash -c "cd /monero && bash contrib/guix/libexec/build.sh"
+    )
+
+done
diff --git a/contrib/guix/guix-clean b/contrib/guix/guix-clean
new file mode 100755
index 000000000..b1537c853
--- /dev/null
+++ b/contrib/guix/guix-clean
@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+export LC_ALL=C
+set -e -o pipefail
+
+# Source the common prelude, which:
+#   1. Checks if we're at the top directory of the Monero repository
+#   2. Defines a few common functions and variables
+#
+# shellcheck source=libexec/prelude.bash
+source "$(dirname "${BASH_SOURCE[0]}")/libexec/prelude.bash"
+
+
+###################
+## Sanity Checks ##
+###################
+
+################
+# Required non-builtin commands should be invokable
+################
+
+check_tools git realpath
+
+
+#############
+##  Clean  ##
+#############
+
+# Usage: under_dir MAYBE_PARENT MAYBE_CHILD
+#
+# If MAYBE_CHILD is a subdirectory of MAYBE_PARENT, print the relative path
+# from MAYBE_PARENT to MAYBE_CHILD. Otherwise, return 1 as the error code.
+#
+# NOTE: This does not perform any symlink-resolving.
+#
+under_dir() {
+    local relpath
+    relpath="$(realpath --no-symlinks --relative-base="$1" "$2")"
+    if [ -z "$relpath" ] || [ "$relpath" = "$2" ] || [ "$relpath" = "." ]; then
+        return 1
+    else
+        echo "$relpath"
+    fi
+}
+
+# Usage: dir_under_git_root MAYBE_CHILD
+#
+# If MAYBE_CHILD is under the current git repository and exists, print the
+# relative path from the git repository's top-level directory to MAYBE_CHILD,
+# otherwise, exit with an error code.
+#
+dir_under_git_root() {
+    local rv
+    rv="$(under_dir "$(git_root)" "$1")"
+    [ -n "$rv" ] && echo "$rv"
+}
+
+shopt -s nullglob
+found_precious_dirs_files=( "${version_base_prefix}"*/"${var_base_basename}/precious_dirs" ) # This expands to an array of directories...
+shopt -u nullglob
+
+exclude_flags=()
+
+for precious_dirs_file in "${found_precious_dirs_files[@]}"; do
+    # Make sure the precious directories (e.g. SOURCES_PATH, BASE_CACHE, SDK_PATH)
+    # are excluded from git-clean
+    echo "Found precious_dirs file: '${precious_dirs_file}'"
+
+    # Exclude the precious_dirs file itself
+    if dirs_file_exclude_fragment=$(dir_under_git_root "$(dirname "$precious_dirs_file")"); then
+        exclude_flags+=( --exclude="/${dirs_file_exclude_fragment}/precious_dirs" )
+    fi
+
+    # Read each 'name=dir' pair from the precious_dirs file
+    while IFS='=' read -r name dir; do
+        # Add an exclusion flag if the precious directory is under the git root.
+        if under=$(dir_under_git_root "$dir"); then
+            echo "Avoiding ${name}: ${under}"
+            exclude_flags+=( --exclude="/$under" )
+        fi
+    done < "$precious_dirs_file"
+done
+
+git clean -xdff "${exclude_flags[@]}"
diff --git a/contrib/guix/guix-verify b/contrib/guix/guix-verify
new file mode 100755
index 000000000..580273c0c
--- /dev/null
+++ b/contrib/guix/guix-verify
@@ -0,0 +1,124 @@
+#!/usr/bin/env bash
+export LC_ALL=C
+set -e -o pipefail
+
+# Source the common prelude, which:
+#   1. Checks if we're at the top directory of the monero repository
+#   2. Defines a few common functions and variables
+#
+# shellcheck source=libexec/prelude.bash
+source "$(dirname "${BASH_SOURCE[0]}")/libexec/prelude.bash"
+
+
+###################
+## Sanity Checks ##
+###################
+
+################
+# Required non-builtin commands should be invokable
+################
+
+check_tools cat diff gpg
+
+################
+# Required env vars should be non-empty
+################
+
+cmd_usage() {
+cat <<EOF
+Synopsis:
+
+    env GUIX_SIGS_REPO=<path/to/guix.sigs> [ SIGNER=<signer> ] ./contrib/guix/guix-verify
+
+Example overriding signer's manifest to use as base
+
+    env GUIX_SIGS_REPO=/home/user/guix.sigs SIGNER=achow101 ./contrib/guix/guix-verify
+
+EOF
+}
+
+if [ -z "$GUIX_SIGS_REPO" ]; then
+    cmd_usage
+    exit 1
+fi
+
+################
+# GUIX_SIGS_REPO should exist as a directory
+################
+
+if [ ! -d "$GUIX_SIGS_REPO" ]; then
+cat << EOF
+ERR: The specified GUIX_SIGS_REPO is not an existent directory:
+
+    '$GUIX_SIGS_REPO'
+
+Hint: Please clone the guix.sigs repository and point to it with the
+      GUIX_SIGS_REPO environment variable.
+
+EOF
+cmd_usage
+exit 1
+fi
+
+##############
+##  Verify  ##
+##############
+
+OUTSIGDIR_BASE="${GUIX_SIGS_REPO}/${VERSION}"
+echo "Looking for signature directories in '${OUTSIGDIR_BASE}'"
+echo ""
+
+# Usage: verify compare_manifest current_manifest
+verify() {
+    local compare_manifest="$1"
+    local current_manifest="$2"
+    if ! gpg --quiet --batch --verify "$current_manifest".asc "$current_manifest" 1>&2; then
+        echo "ERR: Failed to verify GPG signature in '${current_manifest}'"
+        echo ""
+        echo "Hint: Either the signature is invalid or the public key is missing"
+        echo ""
+        failure=1
+    elif ! diff --text --report-identical "$compare_manifest" "$current_manifest" 1>&2; then
+        echo "ERR: The SHA256SUMS attestation in these two directories differ:"
+        echo "    '${compare_manifest}'"
+        echo "    '${current_manifest}'"
+        echo ""
+        failure=1
+    else
+        echo "Verified: '${current_manifest}'"
+        echo ""
+    fi
+}
+
+shopt -s nullglob
+all_all=( "$OUTSIGDIR_BASE"/*/all.SHA256SUMS )
+shopt -u nullglob
+
+if (( ${#all_all[@]} )); then
+    compare_all="${all_all[0]}"
+    if [[ -n "$SIGNER" ]]; then
+        signer_all="$OUTSIGDIR_BASE/$SIGNER/all.SHA256SUMS"
+        if [[ -f "$signer_all" ]]; then
+            echo "Using $SIGNER's manifest as the base to compare against"
+            compare_all="$signer_all"
+        else
+            echo "Unable to find $SIGNER's manifest, using the first one found"
+        fi
+    else
+        echo "No SIGNER provided, using the first manifest found"
+    fi
+
+    for current_manifest in "${all_all[@]}"; do
+        verify "$compare_all" "$current_manifest"
+    done
+
+    echo "DONE: Checking output signatures for all.SHA256SUMS"
+    echo ""
+else
+    echo "ERR: No signature directories with all.SHA256SUMS found"
+    exit 1
+fi
+
+if [ -n "$failure" ]; then
+    exit 1
+fi
diff --git a/contrib/guix/libexec/build.sh b/contrib/guix/libexec/build.sh
new file mode 100644
index 000000000..be2c937fb
--- /dev/null
+++ b/contrib/guix/libexec/build.sh
@@ -0,0 +1,414 @@
+#!/usr/bin/env bash
+# Copyright (c) 2019-2021 The Bitcoin Core developers
+# Copyright (c) 2022-2024 The Monero Project
+# Distributed under the MIT software license, see the accompanying
+# file ../LICENSE.txt or http://www.opensource.org/licenses/mit-license.php.
+export LC_ALL=C
+set -e -o pipefail
+export TZ=UTC
+
+# shellcheck source=contrib/shell/git-utils.bash
+source contrib/shell/git-utils.bash
+
+# Although Guix _does_ set umask when building its own packages (in our case,
+# this is all packages in manifest.scm), it does not set it for `guix
+# environment`. It does make sense for at least `guix environment --container`
+# to set umask, so if that change gets merged upstream and we bump the
+# time-machine to a commit which includes the aforementioned change, we can
+# remove this line.
+#
+# This line should be placed before any commands which creates files.
+umask 0022
+
+if [ -n "$V" ]; then
+    # Print both unexpanded (-v) and expanded (-x) forms of commands as they are
+    # read from this file.
+    set -vx
+    # Set VERBOSE for CMake-based builds
+    export VERBOSE="$V"
+fi
+
+# Check that required environment variables are set
+cat << EOF
+Required environment variables as seen inside the container:
+    DIST_ARCHIVE_BASE: ${DIST_ARCHIVE_BASE:?not set}
+    VERSION: ${VERSION:?not set}
+    HOST: ${HOST:?not set}
+    COMMIT_TIMESTAMP: ${COMMIT_TIMESTAMP:?not set}
+    JOBS: ${JOBS:?not set}
+    DISTSRC: ${DISTSRC:?not set}
+    OUTDIR: ${OUTDIR:?not set}
+    LOGDIR: ${LOGDIR:?not set}
+    OPTIONS: ${OPTIONS}
+EOF
+
+ACTUAL_OUTDIR="${OUTDIR}"
+OUTDIR="${DISTSRC}/output"
+DISTNAME="monero-${HOST}-${VERSION}"
+
+# Use a fixed timestamp for depends builds so hashes match across commits that
+# don't make changes to the build system. This timestamp is only used for depends
+# packages. Source archive and binary tarballs use the commit date.
+export SOURCE_DATE_EPOCH=1397818193
+
+#####################
+# Environment Setup #
+#####################
+
+# Collect some information about the build environment to help debug potential reproducibility issues
+mkdir -p "${LOGDIR}"
+ls -1 /gnu/store | sort > ${LOGDIR}/guix-hashes.txt
+printenv | sort | grep -v '^\(BASE_CACHE=\|DISTNAME=\|DISTSRC=\|OUTDIR=\|LOGDIR=\|SOURCES_PATH=\|JOBS=\|OPTIONS=\|DEPENDS_ONLY=\)' > ${LOGDIR}/guix-env.txt
+
+# The depends folder also serves as a base-prefix for depends packages for
+# $HOSTs after successfully building.
+BASEPREFIX="${PWD}/contrib/depends"
+
+# Given a package name and an output name, return the path of that output in our
+# current guix environment
+store_path() {
+    grep --extended-regexp "/[^-]{32}-${1}-[^-]+${2:+-${2}}" "${GUIX_ENVIRONMENT}/manifest" \
+        | head --lines=1 \
+        | sed --expression='s|\x29*$||' \
+              --expression='s|^[[:space:]]*"||' \
+              --expression='s|"[[:space:]]*$||'
+}
+
+# These environment variables are automatically set by Guix, but don't
+# necessarily point to the correct toolchain paths. This is fixed below.
+unset LIBRARY_PATH
+unset CPATH
+unset C_INCLUDE_PATH
+unset CPLUS_INCLUDE_PATH
+unset OBJC_INCLUDE_PATH
+unset OBJCPLUS_INCLUDE_PATH
+
+NATIVE_GCC="$(store_path gcc-toolchain)"
+
+export C_INCLUDE_PATH="${NATIVE_GCC}/include"
+export CPLUS_INCLUDE_PATH="${NATIVE_GCC}/include/c++:${NATIVE_GCC}/include"
+export OBJC_INCLUDE_PATH="${NATIVE_GCC}/include"
+export OBJCPLUS_INCLUDE_PATH="${NATIVE_GCC}/include/c++:${NATIVE_GCC}/include"
+
+case "$HOST" in
+    *darwin*) export LIBRARY_PATH="${NATIVE_GCC}/lib" ;;
+    *mingw*) export LIBRARY_PATH="${NATIVE_GCC}/lib" ;;
+    *)
+        NATIVE_GCC_STATIC="$(store_path gcc-toolchain static)"
+        export LIBRARY_PATH="${NATIVE_GCC}/lib:${NATIVE_GCC_STATIC}/lib"
+        ;;
+esac
+
+prepend_to_search_env_var() {
+    export "${1}=${2}${!1:+:}${!1}"
+}
+
+# Set environment variables to point the CROSS toolchain to the right
+# includes/libs for $HOST
+case "$HOST" in
+    *mingw*)
+        # Determine output paths to use in CROSS_* environment variables
+        case "$HOST" in
+            i686-*)    CROSS_GLIBC="$(store_path "mingw-w64-i686-winpthreads")" ;;
+            x86_64-*)  CROSS_GLIBC="$(store_path "mingw-w64-x86_64-winpthreads")" ;;
+            *)         exit 1 ;;
+        esac
+
+        CROSS_GCC="$(store_path "gcc-cross-${HOST}")"
+        CROSS_GCC_LIB_STORE="$(store_path "gcc-cross-${HOST}" lib)"
+        CROSS_GCC_LIBS=( "${CROSS_GCC_LIB_STORE}/lib/gcc/${HOST}"/* ) # This expands to an array of directories...
+        CROSS_GCC_LIB="${CROSS_GCC_LIBS[0]}" # ...we just want the first one (there should only be one)
+
+        # The search path ordering is generally:
+        #    1. gcc-related search paths
+        #    2. libc-related search paths
+        #    2. kernel-header-related search paths (not applicable to mingw-w64 hosts)
+        export CROSS_C_INCLUDE_PATH="${CROSS_GCC_LIB}/include:${CROSS_GCC_LIB}/include-fixed:${CROSS_GLIBC}/include"
+        export CROSS_CPLUS_INCLUDE_PATH="${CROSS_GCC}/include/c++:${CROSS_GCC}/include/c++/${HOST}:${CROSS_GCC}/include/c++/backward:${CROSS_C_INCLUDE_PATH}"
+        export CROSS_LIBRARY_PATH="${CROSS_GCC_LIB_STORE}/lib:${CROSS_GCC_LIB}:${CROSS_GLIBC}/lib"
+        ;;
+    *darwin*)
+        # The CROSS toolchain for darwin uses the SDK and ignores environment variables.
+        # See depends/hosts/darwin.mk for more details.
+        ;;
+    *android*)
+        export LD_LIBRARY_PATH="$(find /gnu/store -maxdepth 1 -name "*zlib*" | sort | head -n 1)/lib:$(find /gnu/store -maxdepth 1 -name "*gcc-11*-lib" | sort | head -n 1)/lib"
+        ;;
+    *linux-gnu*)
+        CROSS_GLIBC="$(store_path "glibc-cross-${HOST}")"
+        CROSS_GLIBC_STATIC="$(store_path "glibc-cross-${HOST}" static)"
+        CROSS_KERNEL="$(store_path "linux-libre-headers-cross-${HOST}")"
+        CROSS_GCC="$(store_path "gcc-cross-${HOST}")"
+        CROSS_GCC_LIB_STORE="$(store_path "gcc-cross-${HOST}" lib)"
+        CROSS_GCC_LIBS=( "${CROSS_GCC_LIB_STORE}/lib/gcc/${HOST}"/* ) # This expands to an array of directories...
+        CROSS_GCC_LIB="${CROSS_GCC_LIBS[0]}" # ...we just want the first one (there should only be one)
+
+        export CROSS_C_INCLUDE_PATH="${CROSS_GCC_LIB}/include:${CROSS_GCC_LIB}/include-fixed:${CROSS_GLIBC}/include:${CROSS_KERNEL}/include"
+        export CROSS_CPLUS_INCLUDE_PATH="${CROSS_GCC}/include/c++:${CROSS_GCC}/include/c++/${HOST}:${CROSS_GCC}/include/c++/backward:${CROSS_C_INCLUDE_PATH}"
+        export CROSS_LIBRARY_PATH="${CROSS_GCC_LIB_STORE}/lib:${CROSS_GCC_LIB}:${CROSS_GLIBC}/lib:${CROSS_GLIBC_STATIC}/lib"
+        ;;
+    *freebsd*)
+        ;;
+    *)
+        exit 1 ;;
+esac
+
+
+# Sanity check CROSS_*_PATH directories
+IFS=':' read -ra PATHS <<< "${CROSS_C_INCLUDE_PATH}:${CROSS_CPLUS_INCLUDE_PATH}:${CROSS_LIBRARY_PATH}"
+for p in "${PATHS[@]}"; do
+    if [ -n "$p" ] && [ ! -d "$p" ]; then
+        echo "'$p' doesn't exist or isn't a directory... Aborting..."
+        exit 1
+    fi
+done
+
+# Disable Guix ld auto-rpath behavior
+case "$HOST" in
+    *darwin*)
+        # The auto-rpath behavior is necessary for darwin builds as some native
+        # tools built by depends refer to and depend on Guix-built native
+        # libraries
+        #
+        # After the native packages in depends are built, the ld wrapper should
+        # no longer affect our build, as clang would instead reach for
+        # x86_64-apple-darwin-ld from cctools
+        ;;
+    *android*)
+        ;;
+    *) export GUIX_LD_WRAPPER_DISABLE_RPATH=yes ;;
+esac
+
+# Make /usr/bin if it doesn't exist
+[ -e /usr/bin ] || mkdir -p /usr/bin
+[ -e /lib64 ] || mkdir /lib64
+
+# Symlink file and env to a conventional path
+[ -e /usr/bin/file ] || ln -s --no-dereference "$(command -v file)" /usr/bin/file
+[ -e /usr/bin/env ]  || ln -s --no-dereference "$(command -v env)"  /usr/bin/env
+[ -e /bin/bash ]  || ln -s --no-dereference "$(command -v bash)"  /bin/bash
+[ -e /bin/sh ]  || ln -s --no-dereference "$(command -v sh)"  /bin/sh
+
+# The Android NDK toolchain cannot (yet) be bootstrapped. The compiler binaries
+# included in the NDK have their dynamic interpreter set to the standard x86_64
+# interpreter path, which does not exist in this location in the Guix environment.
+# The alternative was patchelf-ing all binaries included in the NDK, but this is
+# more hacky and adds a dependency on patchelf for non-Guix builders.
+[ -e /lib64/ld-linux-x86-64.so.2 ]  || ln -s --no-dereference "${NATIVE_GCC}/lib/ld-linux-x86-64.so.2"  /lib64/ld-linux-x86-64.so.2
+
+# Determine the correct value for -Wl,--dynamic-linker for the current $HOST
+#
+# We need to do this because the dynamic linker does not exist at a standard path
+# in the Guix container. Binaries wouldn't be able to start in other environments.
+case "$HOST" in
+    *linux-gnu*)
+        glibc_dynamic_linker=$(
+            case "$HOST" in
+                x86_64-linux-gnu)      echo /lib64/ld-linux-x86-64.so.2 ;;
+                arm-linux-gnueabihf)   echo /lib/ld-linux-armhf.so.3 ;;
+                aarch64-linux-gnu)     echo /lib/ld-linux-aarch64.so.1 ;;
+                riscv64-linux-gnu)     echo /lib/ld-linux-riscv64-lp64d.so.1 ;;
+                i686-linux-gnu)        echo /lib/ld-linux.so.2 ;;
+                *)                     exit 1 ;;
+            esac
+        )
+        ;;
+esac
+
+export GLIBC_DYNAMIC_LINKER=${glibc_dynamic_linker}
+
+# Environment variables for determinism
+export TAR_OPTIONS="--owner=0 --group=0 --numeric-owner --mtime='@${SOURCE_DATE_EPOCH}' --sort=name"
+export TZ="UTC"
+case "$HOST" in
+    *darwin*)
+        # cctools AR, unlike GNU binutils AR, does not have a deterministic mode
+        # or a configure flag to enable determinism by default, it only
+        # understands if this env-var is set or not. See:
+        #
+        # https://github.com/tpoechtrager/cctools-port/blob/55562e4073dea0fbfd0b20e0bf69ffe6390c7f97/cctools/ar/archive.c#L334
+        export ZERO_AR_DATE=yes
+        ;;
+esac
+
+####################
+# Depends Building #
+####################
+
+mkdir -p "${OUTDIR}"
+
+# Log the depends build ids
+make -C contrib/depends --no-print-directory HOST="$HOST" print-final_build_id_long | tr ':' '\n' > ${LOGDIR}/depends-hashes.txt
+
+# Build the depends tree, overriding variables that assume multilib gcc
+make -C contrib/depends --jobs="$JOBS" HOST="$HOST" \
+                                   ${V:+V=1} \
+                                   ${SOURCES_PATH+SOURCES_PATH="$SOURCES_PATH"} \
+                                   ${BASE_CACHE+BASE_CACHE="$BASE_CACHE"} \
+                                   ${SDK_PATH+SDK_PATH="$SDK_PATH"} \
+                                   OUTDIR="$OUTDIR" \
+                                   LOGDIR="$LOGDIR" \
+                                   x86_64_linux_CC=x86_64-linux-gnu-gcc \
+                                   x86_64_linux_CXX=x86_64-linux-gnu-g++ \
+                                   x86_64_linux_AR=x86_64-linux-gnu-gcc-ar \
+                                   x86_64_linux_RANLIB=x86_64-linux-gnu-gcc-ranlib \
+                                   x86_64_linux_NM=x86_64-linux-gnu-gcc-nm \
+                                   x86_64_linux_STRIP=x86_64-linux-gnu-strip
+
+# Log the depends package hashes
+DEPENDS_PACKAGES="$(make -C contrib/depends --no-print-directory HOST="$HOST" print-all_packages)"
+DEPENDS_CACHE="$(make -C contrib/depends --no-print-directory ${BASE_CACHE+BASE_CACHE="$BASE_CACHE"} print-BASE_CACHE)"
+
+# Keep a record of the depends packages and their hashes that will be used for
+# our build. If there is a reproducibility issue, comparing this log file could
+# help narrow down which package is responsible for the defect.
+{
+    for package in ${DEPENDS_PACKAGES}; do
+        cat "${DEPENDS_CACHE}/${HOST}/${package}"/*.hash
+    done
+} | sort -k2 > "${LOGDIR}/depends-packages.txt"
+
+# Stop here if we're only building depends packages. This is useful when
+# debugging reproducibility issues in depends packages. Skips ahead to the next
+# target, so we don't spend time building Monero binaries.
+if [[ -n "$DEPENDS_ONLY" ]]; then
+    exit 0
+fi
+
+###########################
+# Source Tarball Building #
+###########################
+
+# Use COMMIT_TIMESTAMP for the source and release binary archives
+export SOURCE_DATE_EPOCH=${COMMIT_TIMESTAMP}
+export TAR_OPTIONS="--owner=0 --group=0 --numeric-owner --mtime='@${SOURCE_DATE_EPOCH}' --sort=name"
+
+GIT_ARCHIVE="${DIST_ARCHIVE_BASE}/monero-source-${VERSION}.tar.gz"
+
+# Create the source tarball if not already there
+# This uses `git ls-files --recurse-submodules` instead of `git archive` to make
+# sure submodules are included in the source archive.
+if [ ! -e "$GIT_ARCHIVE" ]; then
+    mkdir -p "$(dirname "$GIT_ARCHIVE")"
+    git ls-files --recurse-submodules \
+    | sort \
+    | tar --create --transform "s,^,monero-source-${VERSION}/," --mode='u+rw,go+r-w,a+X' --files-from=- \
+    | gzip -9n > ${GIT_ARCHIVE}
+    sha256sum "$GIT_ARCHIVE"
+fi
+
+###########################
+# Binary Tarball Building #
+###########################
+
+# CFLAGS
+case "$HOST" in
+    *linux-gnu*)
+        HOST_CFLAGS=$(find /gnu/store -maxdepth 1 -mindepth 1 -type d -exec echo -n " -ffile-prefix-map={}=/usr" \;)
+        HOST_CFLAGS+=" -ffile-prefix-map=${PWD}=." ;;
+esac
+
+# CXXFLAGS
+HOST_CXXFLAGS="$HOST_CFLAGS"
+case "$HOST" in
+    arm-linux-gnueabihf) HOST_CXXFLAGS+=" -Wno-psabi" ;;
+esac
+
+# LDFLAGS
+case "$HOST" in
+    *linux-gnu*)  HOST_LDFLAGS="-Wl,--as-needed -Wl,--dynamic-linker=$glibc_dynamic_linker -static-libstdc++" ;;
+    *mingw*)  HOST_LDFLAGS="-Wl,--no-insert-timestamp" ;;
+esac
+
+export GIT_DISCOVERY_ACROSS_FILESYSTEM=1
+# Force Trezor support for release binaries
+export USE_DEVICE_TREZOR_MANDATORY=1
+
+# Make $HOST-specific native binaries from depends available in $PATH
+export PATH="${BASEPREFIX}/${HOST}/native/bin:${PATH}"
+mkdir -p "$DISTSRC"
+(
+    cd "$DISTSRC"
+
+    # Extract the source tarball
+    tar --strip-components=1 -xf "${GIT_ARCHIVE}"
+
+    # Setup the directory where our Monero build for HOST will be
+    # installed. This directory will also later serve as the input for our
+    # binary tarballs.
+    INSTALLPATH="${DISTSRC}/installed/${DISTNAME}"
+    mkdir -p "${INSTALLPATH}"
+
+    # Ensure rpath in the resulting binaries is empty
+    CMAKEFLAGS="-DCMAKE_SKIP_RPATH=ON"
+
+    # We can't check if submodules are checked out because we're building in an
+    # extracted source archive. The guix-build script makes sure submodules are
+    # checked out before starting a build.
+    CMAKEFLAGS+=" -DMANUAL_SUBMODULES=1"
+
+    # Configure this DISTSRC for $HOST
+    # shellcheck disable=SC2086
+    env CFLAGS="${HOST_CFLAGS}" CXXFLAGS="${HOST_CXXFLAGS}" \
+    cmake --toolchain "${BASEPREFIX}/${HOST}/share/toolchain.cmake" -S . -B build \
+      -DCMAKE_INSTALL_PREFIX="${INSTALLPATH}" \
+      -DCMAKE_EXE_LINKER_FLAGS="${HOST_LDFLAGS}" \
+      -DCMAKE_SHARED_LINKER_FLAGS="${HOST_LDFLAGS}" \
+      ${CMAKEFLAGS}
+
+    make -C build --jobs="$JOBS"
+
+    # Copy docs
+    cp README.md LICENSE docs/ANONYMITY_NETWORKS.md "${INSTALLPATH}"
+
+    # Binaries should not contain references to the store path
+    for binary in "build/bin"/*; do
+        if strings "$binary" | grep -q "/gnu/store"; then
+            echo "ERR: ${binary} contains unexpected string: /gnu/store"
+            exit 1
+        fi
+    done
+
+    # Copy binaries
+    cp -a build/bin/* "${INSTALLPATH}"
+
+    (
+        cd installed
+
+        # Finally, deterministically produce binary tarballs ready for release
+        case "$HOST" in
+            *mingw*)
+                find "${DISTNAME}/" -print0 \
+                    | xargs -0r touch --no-dereference --date="@${SOURCE_DATE_EPOCH}"
+                find "${DISTNAME}/" \
+                    | sort \
+                    | zip -X@ "${OUTDIR}/${DISTNAME}.zip" \
+                    || ( rm -f "${OUTDIR}/${DISTNAME}.zip" && exit 1 )
+                ;;
+            *)
+                find "${DISTNAME}/" -print0 \
+                    | xargs -0r touch --no-dereference --date="@${SOURCE_DATE_EPOCH}"
+                find "${DISTNAME}/" \
+                    | sort \
+                    | tar --no-recursion --owner=0 --group=0 -c -T - \
+                    | bzip2 -9 > "${OUTDIR}/${DISTNAME}.tar.bz2" \
+                    || ( rm -f "${OUTDIR}/${DISTNAME}.tar.bz2" && exit 1 )
+                ;;
+        esac
+    )
+)  # $DISTSRC
+
+rm -rf "$ACTUAL_OUTDIR"
+mv --no-target-directory "$OUTDIR" "$ACTUAL_OUTDIR" \
+    || ( rm -rf "$ACTUAL_OUTDIR" && exit 1 )
+
+(
+    cd /outdir-base
+    {
+        echo "$GIT_ARCHIVE"
+        find "$ACTUAL_OUTDIR" -type f
+    } | xargs realpath --relative-base="$PWD" \
+      | xargs sha256sum \
+      | sort -k2 \
+      | sponge "$LOGDIR"/SHA256SUMS.part
+)
diff --git a/contrib/guix/libexec/prelude.bash b/contrib/guix/libexec/prelude.bash
new file mode 100644
index 000000000..63b3bb877
--- /dev/null
+++ b/contrib/guix/libexec/prelude.bash
@@ -0,0 +1,101 @@
+#!/usr/bin/env bash
+export LC_ALL=C
+set -e -o pipefail
+
+# shellcheck source=contrib/shell/git-utils.bash
+source contrib/shell/git-utils.bash
+
+################
+# Required non-builtin commands should be invocable
+################
+
+check_tools() {
+    for cmd in "$@"; do
+        if ! command -v "$cmd" > /dev/null 2>&1; then
+            echo "ERR: This script requires that '$cmd' is installed and available in your \$PATH"
+            exit 1
+        fi
+    done
+}
+
+check_tools cat env git realpath
+
+################
+# We should be at the top directory of the repository
+################
+
+same_dir() {
+    local resolved1 resolved2
+    resolved1="$(realpath -e "${1}")"
+    resolved2="$(realpath -e "${2}")"
+    [ "$resolved1" = "$resolved2" ]
+}
+
+if ! same_dir "${PWD}" "$(git_root)"; then
+cat << EOF
+ERR: This script must be invoked from the top level of the git repository
+
+Hint: This may look something like:
+    env FOO=BAR ./contrib/guix/guix-<blah>
+
+EOF
+exit 1
+fi
+
+################
+# Execute "$@" in a pinned, possibly older version of Guix, for reproducibility
+# across time.
+#
+# For more information on guix time-machine, see:
+# https://guix.gnu.org/manual/en/html_node/Invoking-guix-time_002dmachine.html
+#
+# Before updating the pinned hash:
+#
+# - Push new commits to monero-project/guix from upstream. Do not forget to update
+#   the keyring branch as well. Guix uses this branch to authenticate commits.
+#
+#   The repository is set to monero-project/guix because fetching from the official
+#   repo at https://git.savannah.gnu.org/git/guix.git is unreliable in CI jobs.
+#
+#   Do not attempt to push custom changes to monero-project/guix, it will not work!
+#   If a change is necessary to Guix, submit a patch to https://issues.guix.gnu.org/
+#   New packages can be defined in manifest.scm until they are available upstream.
+#
+# - Make sure a bootstrapped build works with the new commit using a fresh Guix install:
+#   $ export ADDITIONAL_GUIX_COMMON_FLAGS='--no-substitutes'
+#
+# - Check how the update affects our build graph and which packages have been updated.
+time-machine() {
+    # shellcheck disable=SC2086
+    guix time-machine --url=https://github.com/monero-project/guix.git \
+                      --commit=53396a22afc04536ddf75d8f82ad2eafa5082725 \
+                      --cores="$JOBS" \
+                      --keep-failed \
+                      --fallback \
+                      ${SUBSTITUTE_URLS:+--substitute-urls="$SUBSTITUTE_URLS"} \
+                      ${ADDITIONAL_GUIX_COMMON_FLAGS} ${ADDITIONAL_GUIX_TIMEMACHINE_FLAGS} \
+                      -- "$@"
+}
+
+
+################
+# Set common variables
+################
+
+VERSION="${FORCE_VERSION:-$(git_head_version)}"
+
+VERSION_BASE_DIR="${VERSION_BASE_DIR:-${PWD}}"
+version_base_prefix="${VERSION_BASE_DIR}/guix/guix-build-"
+VERSION_BASE="${version_base_prefix}${VERSION}"  # TOP
+
+DISTSRC_BASE="${DISTSRC_BASE:-${VERSION_BASE}}"
+
+OUTDIR_BASE="${OUTDIR_BASE:-${VERSION_BASE}/output}"
+
+LOGDIR_BASE="${LOGDIR_BASE:-${VERSION_BASE}/logs}"
+
+var_base_basename="var"
+VAR_BASE="${VAR_BASE:-${VERSION_BASE}/${var_base_basename}}"
+
+profiles_base_basename="profiles"
+PROFILES_BASE="${PROFILES_BASE:-${VAR_BASE}/${profiles_base_basename}}"
diff --git a/contrib/guix/manifest.scm b/contrib/guix/manifest.scm
new file mode 100644
index 000000000..301459c4d
--- /dev/null
+++ b/contrib/guix/manifest.scm
@@ -0,0 +1,312 @@
+(use-modules (gnu packages)
+             (gnu packages autotools)
+             (gnu packages bash)
+             ((gnu packages cmake) #:select (cmake-minimal))
+             (gnu packages commencement)
+             (gnu packages compression)
+             (gnu packages cross-base)
+             ((gnu packages elf) #:select (patchelf))
+             (gnu packages file)
+             (gnu packages gawk)
+             (gnu packages gcc)
+             (gnu packages gperf)
+             ((gnu packages libusb) #:select (libplist))
+             ((gnu packages linux) #:select (linux-libre-headers-6.1 util-linux))
+             (gnu packages llvm)
+             (gnu packages mingw)
+             (gnu packages moreutils)
+             (gnu packages perl)
+             (gnu packages pkg-config)
+             ((gnu packages python) #:select (python-minimal))
+             ((gnu packages tls) #:select (openssl))
+             ((gnu packages version-control) #:select (git-minimal))
+             (guix build-system gnu)
+             (guix build-system trivial)
+             (guix download)
+             (guix gexp)
+             (guix git-download)
+             ((guix licenses) #:prefix license:)
+             (guix packages)
+             ((guix utils) #:select (substitute-keyword-arguments)))
+
+(define-syntax-rule (search-our-patches file-name ...)
+  "Return the list of absolute file names corresponding to each
+FILE-NAME found in ./patches relative to the current file."
+  (parameterize
+      ((%patch-path (list (string-append (dirname (current-filename)) "/patches"))))
+    (list (search-patch file-name) ...)))
+
+(define building-on (string-append "--build=" (list-ref (string-split (%current-system) #\-) 0) "-guix-linux-gnu"))
+
+(define (make-cross-toolchain target
+                              base-gcc-for-libc
+                              base-kernel-headers
+                              base-libc
+                              base-gcc)
+  "Create a cross-compilation toolchain package for TARGET"
+  (let* ((xbinutils (cross-binutils target))
+         ;; 1. Build a cross-compiling gcc without targeting any libc, derived
+         ;; from BASE-GCC-FOR-LIBC
+         (xgcc-sans-libc (cross-gcc target
+                                    #:xgcc base-gcc-for-libc
+                                    #:xbinutils xbinutils))
+         ;; 2. Build cross-compiled kernel headers with XGCC-SANS-LIBC, derived
+         ;; from BASE-KERNEL-HEADERS
+         (xkernel (cross-kernel-headers target
+                                        #:linux-headers base-kernel-headers
+                                        #:xgcc xgcc-sans-libc
+                                        #:xbinutils xbinutils))
+         ;; 3. Build a cross-compiled libc with XGCC-SANS-LIBC and XKERNEL,
+         ;; derived from BASE-LIBC
+         (xlibc (cross-libc target
+                            #:libc base-libc
+                            #:xgcc xgcc-sans-libc
+                            #:xbinutils xbinutils
+                            #:xheaders xkernel))
+         ;; 4. Build a cross-compiling gcc targeting XLIBC, derived from
+         ;; BASE-GCC
+         (xgcc (cross-gcc target
+                          #:xgcc base-gcc
+                          #:xbinutils xbinutils
+                          #:libc xlibc)))
+    ;; Define a meta-package that propagates the resulting XBINUTILS, XLIBC, and
+    ;; XGCC
+    (package
+      (name (string-append target "-toolchain"))
+      (version (package-version xgcc))
+      (source #f)
+      (build-system trivial-build-system)
+      (arguments '(#:builder (begin (mkdir %output) #t)))
+      (propagated-inputs
+        (list xbinutils
+              xlibc
+              xgcc
+              `(,xlibc "static")
+              `(,xgcc "lib")))
+      (synopsis (string-append "Complete GCC tool chain for " target))
+      (description (string-append "This package provides a complete GCC tool
+chain for " target " development."))
+      (home-page (package-home-page xgcc))
+      (license (package-license xgcc)))))
+
+(define base-gcc gcc-12)
+(define base-linux-kernel-headers linux-libre-headers-6.1)
+
+(define* (make-monero-cross-toolchain  target
+                                       #:key
+                                       (base-gcc-for-libc linux-base-gcc)
+                                       (base-kernel-headers base-linux-kernel-headers)
+                                       (base-libc glibc-2.27)
+                                       (base-gcc linux-base-gcc))
+  "Convenience wrapper around MAKE-CROSS-TOOLCHAIN with default values
+desirable for building Monero release binaries."
+  (make-cross-toolchain target
+                        base-gcc-for-libc
+                        base-kernel-headers
+                        base-libc
+                        base-gcc))
+
+(define (gcc-mingw-patches gcc)
+  (package-with-extra-patches gcc
+    (search-our-patches "gcc-remap-guix-store.patch")))
+
+(define (make-mingw-pthreads-cross-toolchain target)
+  "Create a cross-compilation toolchain package for TARGET"
+  (let* ((xbinutils (cross-binutils target))
+         (pthreads-xlibc (package-with-extra-patches (cond ((string-prefix? "i686-" target)
+                                                       mingw-w64-i686-winpthreads)
+                                                 (else mingw-w64-x86_64-winpthreads))
+                           (search-our-patches "winpthreads-remap-guix-store.patch")))
+         (pthreads-xgcc (cross-gcc target
+                                    #:xgcc (gcc-mingw-patches mingw-w64-base-gcc)
+                                    #:xbinutils xbinutils
+                                    #:libc pthreads-xlibc)))
+    ;; Define a meta-package that propagates the resulting XBINUTILS, XLIBC, and
+    ;; XGCC
+    (package
+      (name (string-append target "-posix-toolchain"))
+      (version (package-version pthreads-xgcc))
+      (source #f)
+      (build-system trivial-build-system)
+      (arguments '(#:builder (begin (mkdir %output) #t)))
+      (propagated-inputs
+        (list xbinutils
+              pthreads-xlibc
+              pthreads-xgcc
+              `(,pthreads-xgcc "lib")))
+      (synopsis (string-append "Complete GCC tool chain for " target))
+      (description (string-append "This package provides a complete GCC tool
+chain for " target " development."))
+      (home-page (package-home-page pthreads-xgcc))
+      (license (package-license pthreads-xgcc)))))
+
+(define-public mingw-w64-base-gcc
+  (package
+    (inherit base-gcc)
+    (arguments
+      (substitute-keyword-arguments (package-arguments base-gcc)
+        ((#:configure-flags flags)
+          `(append ,flags
+            ;; https://gcc.gnu.org/install/configure.html
+            (list "--enable-threads=posix",
+                  building-on)))))))
+
+(define-public linux-base-gcc
+  (package
+    (inherit (package-with-extra-patches base-gcc
+               (search-our-patches "gcc-remap-guix-store.patch")))
+    (arguments
+      (substitute-keyword-arguments (package-arguments base-gcc)
+        ((#:configure-flags flags)
+          `(append ,flags
+            ;; https://gcc.gnu.org/install/configure.html
+            (list "--enable-initfini-array=yes",
+                  "--enable-default-ssp=yes",
+                  "--enable-default-pie=yes",
+                  "--enable-standard-branch-protection=yes",
+                  "--enable-cet=yes",
+                  building-on)))
+        ((#:phases phases)
+          `(modify-phases ,phases
+            ;; Given a XGCC package, return a modified package that replace each instance of
+            ;; -rpath in the default system spec that's inserted by Guix with -rpath-link
+            (add-after 'pre-configure 'replace-rpath-with-rpath-link
+             (lambda _
+               (substitute* (cons "gcc/config/rs6000/sysv4.h"
+                                  (find-files "gcc/config"
+                                              "^gnu-user.*\\.h$"))
+                 (("-rpath=") "-rpath-link="))
+               #t))))))))
+
+(define-public glibc-2.27
+  (package
+    (inherit glibc-2.31)
+    (version "2.27")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://sourceware.org/git/glibc.git")
+                    (commit "73886db6218e613bd6d4edf529f11e008a6c2fa6")))
+              (file-name (git-file-name "glibc" "73886db6218e613bd6d4edf529f11e008a6c2fa6"))
+              (sha256
+               (base32
+                "0azpb9cvnbv25zg8019rqz48h8i2257ngyjg566dlnp74ivrs9vq"))
+              (patches (search-our-patches "glibc-2.27-riscv64-Use-__has_include-to-include-asm-syscalls.h.patch"
+                                           "glibc-2.27-guix-prefix.patch"
+                                           "glibc-2.27-no-librt.patch"))))
+    (arguments
+      (substitute-keyword-arguments (package-arguments glibc)
+        ((#:configure-flags flags)
+          `(append ,flags
+            ;; https://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html
+            (list "--enable-stack-protector=all",
+                  "--enable-bind-now",
+                  "--disable-werror",
+                  building-on)))
+    ((#:phases phases)
+        `(modify-phases ,phases
+           (add-before 'configure 'set-etc-rpc-installation-directory
+             (lambda* (#:key outputs #:allow-other-keys)
+               ;; Install the rpc data base file under `$out/etc/rpc'.
+               ;; Otherwise build will fail with "Permission denied."
+               (let ((out (assoc-ref outputs "out")))
+                 (substitute* "sunrpc/Makefile"
+                   (("^\\$\\(inst_sysconfdir\\)/rpc(.*)$" _ suffix)
+                    (string-append out "/etc/rpc" suffix "\n"))
+                   (("^install-others =.*$")
+                    (string-append "install-others = " out "/etc/rpc\n"))))))))))
+    (native-inputs
+      (modify-inputs (package-native-inputs glibc-2.31)
+        (delete "make")
+        (append gnu-make-4.2))))) ;; make >= 4.4 causes an infinite loop (stdio-common)
+
+
+; This list declares which packages are included in the container environment. It
+; should reflect the minimal set of packages we need to build and debug the build
+; process. Guix will also include the run-time dependencies for each package.
+;
+; If a package is target-specific, place it in the corresponding list at the end.
+; Be mindful when adding new packages here. Some packages take a very long time
+; to bootstrap. Prefer -minimal versions of packages, unless there is a good
+; reason not to.
+;
+; To show run-time dependencies, run:
+; $ guix time-machine --commit=<pinned commit> -- graph --type=references <package> | xdot -
+;
+; To show build-time dependencies (excluding bootstrap), run:
+; $ guix time-machine --commit=<pinned commit> -- graph <package> | xdot -
+
+(packages->manifest
+ (append
+  (list ;; The Basics
+        bash
+        ; the build graph for bash-minimal is slightly smaller.
+        ; however, it does not include readline support which
+        ; makes debugging inside the guix container inconvenient
+        coreutils-minimal
+        ; includes basic shell utilities: cat, cp, echo, mkdir, etc
+        which
+
+        ;; File(system) inspection
+        file
+        grep
+        diffutils ; provides diff
+        findutils ; provides find and xargs
+
+        ;; File transformation
+        patch
+        gawk
+        sed
+        moreutils ; sponge is used to construct the SHA256SUMS.part file in libexec/build.sh
+        patchelf  ; unused, occassionally useful for debugging
+
+        ;; Compression and archiving
+        tar
+        bzip2 ; used to create release archives (non-windows)
+        gzip  ; used to unpack most packages in depends
+        xz    ; used to unpack freebsd_base
+        p7zip
+        zip   ; used to create release archives (windows)
+        unzip ; used to unpack android_ndk
+
+        ;; Build tools
+        gnu-make
+        libtool
+        autoconf-2.71 ; defaults to 2.69, which does not recognize the aarch64-apple-darwin target
+        automake
+        pkg-config
+        gperf         ; required to build eudev in depends
+        cmake-minimal
+
+        ;; Scripting
+        perl           ; required to build openssl in depends
+        python-minimal ; required to build monero (cmake/CheckTrezor.cmake) and in android_ndk
+
+        ;; Git
+        git-minimal ; used to create the release source archive
+    )
+  (let ((target (getenv "HOST")))
+    (cond ((string-suffix? "-mingw32" target)
+           (list
+             gcc-toolchain-12
+             (make-mingw-pthreads-cross-toolchain target)))
+          ((string-contains target "-linux-gnu")
+           (list
+             gcc-toolchain-12
+             (list gcc-toolchain-12 "static")
+             (make-monero-cross-toolchain target)))
+          ((string-contains target "freebsd")
+           (list
+             gcc-toolchain-12
+             (list gcc-toolchain-12 "static")
+             clang-toolchain-11 binutils))
+          ((string-contains target "android")
+            (list
+              gcc-toolchain-12
+              (list gcc-toolchain-12 "static")))
+          ((string-contains target "darwin")
+           (list
+             gcc-toolchain-10
+             clang-toolchain-11
+             binutils))
+          (else '())))))
diff --git a/contrib/guix/patches/gcc-remap-guix-store.patch b/contrib/guix/patches/gcc-remap-guix-store.patch
new file mode 100644
index 000000000..a8b41d485
--- /dev/null
+++ b/contrib/guix/patches/gcc-remap-guix-store.patch
@@ -0,0 +1,20 @@
+Without ffile-prefix-map, the debug symbols will contain paths for the
+guix store which will include the hashes of each package. However, the
+hash for the same package will differ when on different architectures.
+In order to be reproducible regardless of the architecture used to build
+the package, map all guix store prefixes to something fixed, e.g. /usr.
+
+--- a/libgcc/Makefile.in
++++ b/libgcc/Makefile.in
+@@ -854,7 +854,7 @@ endif
+ # libgcc_eh.a, only LIB2ADDEH matters.  If we do, only LIB2ADDEHSTATIC and
+ # LIB2ADDEHSHARED matter.  (Usually all three are identical.)
+ 
+-c_flags := -fexceptions
++c_flags := -fexceptions $(shell find /gnu/store -maxdepth 1 -mindepth 1 -type d -exec echo -n " -ffile-prefix-map={}=/usr" \;)
+ 
+ ifeq ($(enable_shared),yes)
+ 
+-- 
+2.37.0
+
diff --git a/contrib/guix/patches/glibc-2.27-guix-prefix.patch b/contrib/guix/patches/glibc-2.27-guix-prefix.patch
new file mode 100644
index 000000000..6648bc6c0
--- /dev/null
+++ b/contrib/guix/patches/glibc-2.27-guix-prefix.patch
@@ -0,0 +1,22 @@
+Without ffile-prefix-map, the debug symbols will contain paths for the
+guix store which will include the hashes of each package. However, the
+hash for the same package will differ when on different architectures.
+In order to be reproducible regardless of the architecture used to build
+the package, map all guix store prefixes to something fixed, e.g. /usr.
+
+We might be able to drop this in favour of using --with-nonshared-cflags
+when we being using newer versions of glibc.
+
+--- a/Makeconfig
++++ b/Makeconfig
+@@ -992,6 +992,10 @@ object-suffixes :=
+ CPPFLAGS-.o = $(pic-default)
+ # libc.a must be compiled with -fPIE/-fpie for static PIE.
+ CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) $(pie-default)
++
++# Map Guix store paths to /usr
++CFLAGS-.o += `find /gnu/store -maxdepth 1 -mindepth 1 -type d -exec echo -n " -ffile-prefix-map={}=/usr" \;`
++
+ libtype.o := lib%.a
+ object-suffixes += .o
+ ifeq (yes,$(build-shared))
diff --git a/contrib/guix/patches/glibc-2.27-no-librt.patch b/contrib/guix/patches/glibc-2.27-no-librt.patch
new file mode 100644
index 000000000..4f2092ba7
--- /dev/null
+++ b/contrib/guix/patches/glibc-2.27-no-librt.patch
@@ -0,0 +1,53 @@
+This patch can be dropped when we are building with glibc 2.30+.
+
+commit 6e41ef56c9baab719a02f1377b1e7ce7bff61e73
+Author: Florian Weimer <fweimer@redhat.com>
+Date:   Fri Feb 8 10:21:56 2019 +0100
+
+    rt: Turn forwards from librt to libc into compat symbols [BZ #24194]
+    
+    As the  result of commit 6e6249d0b461b952d0f544792372663feb6d792a
+    ("BZ#14743: Move clock_* symbols from librt to libc."), in glibc 2.17,
+    clock_gettime, clock_getres, clock_settime, clock_getcpuclockid,
+    clock_nanosleep were added to libc, and the file rt/clock-compat.c
+    was added with forwarders to the actual implementations in libc.
+    These forwarders were wrapped in
+
+    #if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_17)
+    
+    so that they are not present for newer architectures (such as
+    powerpc64le) with a 2.17 or later ABI baseline.  But the forwarders
+    were not marked as compatibility symbols.  As a result, on older
+    architectures, historic configure checks such as
+    
+    AC_CHECK_LIB(rt, clock_gettime)
+    
+    still cause linking against librt, even though this is completely
+    unnecessary.  It also creates a needless porting hazard because
+    architectures behave differently when it comes to symbol availability.
+    
+    Reviewed-by: Carlos O'Donell <carlos@redhat.com>
+
+diff --git a/rt/clock-compat.c b/rt/clock-compat.c
+index f816973c05..11e71aa890 100644
+--- a/rt/clock-compat.c
++++ b/rt/clock-compat.c
+@@ -30,14 +30,16 @@
+ #if HAVE_IFUNC
+ # undef INIT_ARCH
+ # define INIT_ARCH()
+-# define COMPAT_REDIRECT(name, proto, arglist) libc_ifunc (name, &__##name)
++# define COMPAT_REDIRECT(name, proto, arglist) libc_ifunc (name, &__##name) \
++    compat_symbol (librt, name, name, GLIBC_2_2);
+ #else
+ # define COMPAT_REDIRECT(name, proto, arglist)				      \
+   int									      \
+   name proto								      \
+   {									      \
+     return __##name arglist;						      \
+-  }
++  }									      \
++  compat_symbol (librt, name, name, GLIBC_2_2);
+ #endif
+ 
+ COMPAT_REDIRECT (clock_getres,
diff --git a/contrib/guix/patches/glibc-2.27-riscv64-Use-__has_include-to-include-asm-syscalls.h.patch b/contrib/guix/patches/glibc-2.27-riscv64-Use-__has_include-to-include-asm-syscalls.h.patch
new file mode 100644
index 000000000..3738719fa
--- /dev/null
+++ b/contrib/guix/patches/glibc-2.27-riscv64-Use-__has_include-to-include-asm-syscalls.h.patch
@@ -0,0 +1,23 @@
+Fixes a missing include in glibc. It is needed for riscv64 targets.
+This patch can be removed when we upgrade glibc to > 2.27.
+
+diff --git a/sysdeps/unix/sysv/linux/riscv/flush-icache.c b/sysdeps/unix/sysv/linux/riscv/flush-icache.c
+index d612ef4c6c..0b2042620b 100644
+--- a/sysdeps/unix/sysv/linux/riscv/flush-icache.c
++++ b/sysdeps/unix/sysv/linux/riscv/flush-icache.c
+@@ -21,7 +21,11 @@
+ #include <stdlib.h>
+ #include <atomic.h>
+ #include <sys/cachectl.h>
+-#include <asm/syscalls.h>
++#if __has_include (<asm/syscalls.h>)
++# include <asm/syscalls.h>
++#else
++# include <asm/unistd.h>
++#endif
+ 
+ typedef int (*func_type) (void *, void *, unsigned long int);
+ 
+-- 
+2.31.1
+
diff --git a/contrib/guix/patches/winpthreads-remap-guix-store.patch b/contrib/guix/patches/winpthreads-remap-guix-store.patch
new file mode 100644
index 000000000..e1f1a6eba
--- /dev/null
+++ b/contrib/guix/patches/winpthreads-remap-guix-store.patch
@@ -0,0 +1,17 @@
+Without ffile-prefix-map, the debug symbols will contain paths for the
+guix store which will include the hashes of each package. However, the
+hash for the same package will differ when on different architectures.
+In order to be reproducible regardless of the architecture used to build
+the package, map all guix store prefixes to something fixed, e.g. /usr.
+
+--- a/mingw-w64-libraries/winpthreads/Makefile.in
++++ b/mingw-w64-libraries/winpthreads/Makefile.in
+@@ -478,7 +478,7 @@ top_build_prefix = @top_build_prefix@
+ top_builddir = @top_builddir@
+ top_srcdir = @top_srcdir@
+ SUBDIRS = . tests
+-AM_CFLAGS = -Wall -DWIN32_LEAN_AND_MEAN $(am__append_1)
++AM_CFLAGS = -Wall -DWIN32_LEAN_AND_MEAN $(am__append_1) $(shell find /gnu/store -maxdepth 1 -mindepth 1 -type d -exec echo -n " -ffile-prefix-map={}=/usr" \;)
+ ACLOCAL_AMFLAGS = -I m4
+ lib_LTLIBRARIES = libwinpthread.la
+ include_HEADERS = include/pthread.h include/sched.h include/semaphore.h include/pthread_unistd.h include/pthread_time.h include/pthread_compat.h include/pthread_signal.h
diff --git a/contrib/shell/git-utils.bash b/contrib/shell/git-utils.bash
new file mode 100644
index 000000000..0bca2d243
--- /dev/null
+++ b/contrib/shell/git-utils.bash
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+git_root() {
+    git rev-parse --show-toplevel 2> /dev/null
+}
+
+git_head_version() {
+    local recent_tag
+    if recent_tag="$(git describe --exact-match HEAD 2> /dev/null)"; then
+        echo "${recent_tag}"
+    else
+        git rev-parse --short=12 HEAD
+    fi
+}
diff --git a/docs/RELEASE_CHECKLIST.md b/docs/RELEASE_CHECKLIST.md
index cfd04f98d..b36fa660f 100644
--- a/docs/RELEASE_CHECKLIST.md
+++ b/docs/RELEASE_CHECKLIST.md
@@ -41,9 +41,7 @@
   - [ ] https://miningpoolstats.stream/monero
 - [ ] Release branch created
   - [ ] Update src/version.cpp.in with new version AND new name (if necessary)
-  - [ ] Update Gitian YML files in contrib/gitian/ to the new version number
   - [ ] Update README.md with new fork table entry (or at least update the Recommended Monero version)
-  - [ ] Update contrib/gitian/README.md so that the instructions reflect the current version
   - [ ] Update src/checkpoints/checkpoints.cpp with a recent hardcoded checkpoint
   - [ ] Update src/blocks/checkpoints.dat with ./monero-blockchain-export --output-file checkpoints.dat --block-stop <recent block height> --blocksdat
   - [ ] Update expected_block_hashes_hash in src/cryptonote_core/blockchain.cpp with checkpoints.dat sha256 hash