https://f-droid.org/en/packages/com.atharok.btremote/
Bluetooth Remote | F-Droid - Free and Open Source Android App Repository
Bluetooth remote control for Android TV.
remote f droidopen sourcefree
https://f-droid.org/en/packages/com.monuk7735.nope.remote/
Nope Remote | F-Droid - Free and Open Source Android App Repository
IR remote control with customizable automation macros.
remote f droidopen sourcenope