Signally

As of Mar 2025, Signal only offers Debian-based distributions of its desktop application.

This repository contains the Dockerfile to build the Signal Desktop AppImage using this slight tweak in the build command (package.json).

--    "build:electron": "electron-builder --config.extraMetadata.environment=$SIGNAL_ENV",
++    "build:electron": "electron-builder --config.extraMetadata.environment=$SIGNAL_ENV --linux AppImage",

Build

The below command will generate the AppImage in ${PWD}/bin directory.

docker build --output bin --build-arg SIGNAL_VERSION=v7.46.0 .

which can then be run with this command:

./bin/Signally

References

• xai.sh
• Signal-Desktop's developer guide