Thumb-Key
About
Thumb-Key is a privacy-conscious smart keyboard, made specifically for your thumbs.
It features a 3x3 grid layout, as many older phones had, and uses swipes for the less common letters. Initial testing shows that you can reach ~25 words per minute after a day of use.
Instead of relying on profit-driven, privacy-offending word and sentence prediction for accuracy, as do most popular phone keyboards like Gboard and Swiftkey, Thumb-Key uses large keys with predictable positions, to prevent your eyes from hunting and pecking for letters.
As the key positions get ingrained into your muscle memory, eventually you'll be able to appromixate the fast speeds of touch-typing, your eyes never having to leave the text edit area.
This project is a follow-up to the now unmaintained (and closed-source) MessageEase Keyboard, which is its main inspiration.
view the rest of the comments
on messagease i would just do the ctrl or alt swipe then press a letter (etc) and it would do ctrl+letter, so useful for e.g. screen/byobu/tmux ctrl+a n without fiddling with special terminal app keyboards. also ctrl+a, ctrl+c, ctrl+v, ctrl+x, ctrl+z usually work in android apps and sometimes work better than the dedicated buttons for them