OrbiTouch keyless keyboard
Each hand has 8 directions.
8 × 8 = 64 total positions.
You push slide the knob on the left to a position, then push right knob to a position, you get a letter.
This is mostly for people without fingers or hand injury.
It can also work as a mouse.
No software installation required.
Typing speed on this seems to be 30 words per minute.
If you have a question, put $5 at patreon and message me.