This is my Foss setup to replace Gboard, Google Voice input, Gboard IME (STT Keyboard), Google TTS, Gboard with spell checker (right now a extra keyboard is used here)
Main Repo: https://codeberg.org/marvin1099/AndroidFossSTTandKeyboard
Backup Repo: https://github.com/marvin1099/AndroidFossSTTandKeyboard
Keyboard:
https://github.com/florisboard/florisboard
Voice Input:
https://github.com/sogaiu/vosk-android-service/tree/builds/builds
IME keyboard:
https://github.com/ElishaAz/Sayboard
TTS:
https://github.com/espeak-ng/espeak-ng
Extra keyboard with spell checker (is not yet integrated into florisboard, is still usefull with with florisboard, since it still marks words that are incorect):
https://github.com/openboard-team/openboard