Signal Desktop built on top of Muon so you can run it without Google Chrome.
THIS IS NOT PRODUCTION READY. Use at your own risk. I am in no way affiliated with WhisperSystems.
You must have node 7.x and npm or Yarn installed.
With npm:
git clone --recursive https://github.com/diracdeltas/signal-muon.git
cd signal-muon
npm install
npm start
With Yarn:
git clone --recursive https://github.com/diracdeltas/signal-muon.git
cd signal-muon
yarn install
yarn start
With npm:
npm run build
With Yarn:
yarn run build
In development mode, you can only message accounts that are registered on the Signal staging server, so you will probably be very lonely unless you want to talk to other Signal contributors. If you want someone to talk to, my test number is (oldest telephone area code in San Francisco) + (decimal char code of capital Epsilon) + (the 513th prime).
If you want to link Signal-Muon to your mobile device so that you can talk to your contacts, you need to do a build.