wonderfall/synapse

Synapse is a Matrix implementation written in Python.

Prebuilt images are available at ghcr.io/wonderfall/synapse.
Don't trust random images: build yourself if you can.
Always keep your software up-to-date: manage versions with build-time variables.
Images from ghcr.io are built every week, and scanned every day for critical vulnerabilities.

Drop-in replacement for the official image.
Unprivileged image: you should check your volumes permissions (eg /data), default UID/GID is 991.
Based on Alpine, which provides more recent packages while having less attack surface.
Comes with a hardened memory allocator, protecting against some heap-based buffer overflows.