We have launched a trial of shipping the official Signal releases in our F-Droid-compatible repository. We believe we can reliably ship them, using multiple layers of verification on top of the built-in APK signature Signal Foundation ships. This is the same setup that ships Tor Browser. We welcome feedback.
@pettter We would much prefer if Signal Foundation made Signal available via its own fdroid-compatible repository, and would assist them in getting that setup. Since they have not, we want to ensure that F-Droid users have a trusted and resilient channel for getting initial installs and updates.