diff --git a/.github/workflows/docker-hub-latest.yml b/.github/workflows/docker-hub-latest.yml
new file mode 100644
index 0000000..6a8845b
--- /dev/null
+++ b/.github/workflows/docker-hub-latest.yml
@@ -0,0 +1,34 @@
+# Copied from https://github.com/matrix-org/matrix-bifrost/blob/develop/.github/workflows/docker-hub-latest.yml
+
+name: "Docker Hub - Latest"
+
+on:
+  push:
+
+env:
+  DOCKER_NAMESPACE: matrixdotorg
+  PLATFORMS: linux/amd64
+  # Only push if this is main, otherwise we just want to build
+  PUSH: ${{ github.ref == 'refs/heads/main' }}
+
+jobs:
+  docker-latest:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@v2
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      - name: Build image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: ${{ env.PLATFORMS }}
+          push: ${{ env.PUSH }}
+          tags: |
+            ${{ env.DOCKER_NAMESPACE }}/mjolnir:latest
diff --git a/.github/workflows/docker-hub-release.yml b/.github/workflows/docker-hub-release.yml
new file mode 100644
index 0000000..7df6017
--- /dev/null
+++ b/.github/workflows/docker-hub-release.yml
@@ -0,0 +1,35 @@
+# Copied from https://github.com/matrix-org/matrix-bifrost/blob/develop/.github/workflows/docker-hub-release.yml
+
+name: "Docker Hub - Release"
+
+on:
+  release:
+    types: [published]
+
+env:
+  DOCKER_NAMESPACE: matrixdotorg
+  PLATFORMS: linux/amd64
+
+jobs:
+  docker-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@v2
+      - name: Get release tag
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      - name: Build image
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          tags: |
+            ${{ env.DOCKER_NAMESPACE }}/mjolnir:${{ env.RELEASE_VERSION }}
diff --git a/README.md b/README.md
index 3c3977a..1c6280a 100644
--- a/README.md
+++ b/README.md
@@ -120,7 +120,7 @@ modules:
       # these rooms.
       ban_lists:
          - "!roomid:example.org"
-      message_max_length:
+      #message_max_length:
          # Limit the characters in a message (event body) that a client can send in an event on this server.
          # By default there is no limit (beyond the the limit the spec enforces on event size).
          # Uncomment if you want messages to be limited to 510 characters.
diff --git a/mx-tester.yml b/mx-tester.yml
index 26ae0eb..d356f69 100644
--- a/mx-tester.yml
+++ b/mx-tester.yml
@@ -32,6 +32,7 @@ homeserver:
   registration_shared_secret: REGISTRATION_SHARED_SECRET
   # Make manual testing easier
   enable_registration: true
+  enable_registration_without_verification: true
 
   # We remove rc_message so we can test rate limiting,
   # but we keep the others because of https://github.com/matrix-org/synapse/issues/11785
diff --git a/src/Mjolnir.ts b/src/Mjolnir.ts
index d27292c..3c1c098 100644
--- a/src/Mjolnir.ts
+++ b/src/Mjolnir.ts
@@ -320,11 +320,12 @@ export class Mjolnir {
             try {
                 LogService.error("Mjolnir", "Error during startup:");
                 LogService.error("Mjolnir", extractRequestError(err));
+                this.stop();
                 await this.logMessage(LogLevel.ERROR, "Mjolnir@startup", "Startup failed due to error - see console");
+                throw err;
             } catch (e) {
-                // If we failed to handle the error, just crash
-                console.error(e);
-                process.exit(1);
+                LogService.error("Mjolnir", `Failed to report startup error to the management room: ${e}`);
+                throw err;
             }
         }
     }
diff --git a/src/index.ts b/src/index.ts
index e6896a0..0ed071f 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -57,9 +57,14 @@ if (config.health.healthz.enabled) {
         config.RUNTIME.client = client;
 
         bot = await Mjolnir.setupMjolnirFromConfig(client);
+    } catch (err) {
+        console.error(`Failed to setup mjolnir from the config ${config.dataPath}: ${err}`);
+        throw err;
+    }
+    try {
         await bot.start();
     } catch (err) {
-        bot?.logMessage(LogLevel.ERROR, "index", err);
-        process.exit(1);
+        console.error(`Mjolnir failed to start: ${err}`);
+        throw err;
     }
 })();