The Android app of github.com/Daafip/esp32-ereader: puts the e-reader firmware or ESPHome on the home-built FireBeetle 7.5" reader over USB. Built and signed by the project's release workflow on GitHub.

Currently it serves 1 apps. To add it to your F-Droid app, scan the QR code (click it to enlarge) or use this link:

https://daafip.github.io/esp32-ereader/fdroid/repo

If you would like to manually verify the fingerprint (SHA-256) of the repository signing key, here it is:
77 98 85 91 D6 87 BD 31 8E 5A 14 29 6F 06 DD C1 A4 52 20 17 59 B0 E2 41 8A DA 90 38 30 BA CB 87