Heliboard + Google Swipe Lib + FUTO Voice input
https://piefed.ca/c/opensource/p/544589/heliboard-google-swipe-lib-futo-voice-input
Heliboard + Google Swipe Lib + FUTO Voice input
https://piefed.ca/c/opensource/p/544589/heliboard-google-swipe-lib-futo-voice-input
Transcribro uses the same engine as FUTO Voice but is actually open source.
Unfortunately I can’t use any keyboard other than GBoard simply because no one else has figured out swipe typing yet.