Fluxer works on GrapheneOS and other Android phones without Google Play services. Our Android app has a build made for those phones, which gets notifications through UnifiedPush and has none of Google's Play services, Firebase or Play Integrity code.
Which Fluxer build should I use on GrapheneOS?
Use the UnifiedPush build, called stableoss, from our Android download page. It's the build under "No" when the page asks whether your phone has Google Play services.
If you've installed sandboxed Google Play on GrapheneOS and want notifications through Google, you can use the version on Google Play instead. It's signed differently from the builds on GitHub, so you need to uninstall Fluxer before you switch.
How do I install Fluxer on GrapheneOS?
The easiest way is "Obtainium (degoogled phones)" on our Android download page. Obtainium installs the UnifiedPush build from GitHub and keeps it up to date.
You can also download the APK yourself and check its signature before you install it. Fluxer is coming to F-Droid and Accrescent soon, and on GrapheneOS you can already install Accrescent itself from the App Store that comes with GrapheneOS.
How do notifications work without Google?
The UnifiedPush build gets notifications through a UnifiedPush distributor app that you choose and install yourself. If you don't have one, notifications don't arrive at all.
On a self-hosted instance, notifications go from your instance to your distributor's server, and Fluxer isn't involved, as our push relay notice explains.
Does the UnifiedPush build use any Google services?
The UnifiedPush build has no code for Google Play services, Firebase or Google Play billing, and you don't need a Google account on your phone to use it.
On fluxer.com in the UK and Brazil, unlocking mature content needs an age range from Google Play, so the UnifiedPush build can't do that there. Everywhere else, and on self-hosted instances, neither Android build asks Google for an age range.