This reminds me of Dasher:
https://en.wikipedia.org/wiki/Dasher_(software)
A little dizzying to use but a great fusion of some nice concepts. And for its target audience probably a lot more possible than a traditional keyboard.
https://en.wikipedia.org/wiki/Dasher_(software)
A little dizzying to use but a great fusion of some nice concepts. And for its target audience probably a lot more possible than a traditional keyboard.
apt-get install dasher (https://packages.ubuntu.com/disco/dasher)
And here is Dasher's source code: https://github.com/GNOME/dasher