hjkl
Vim-like pager with keyboard selection
gadget
Command to send input over USB
wak
Stack-based text-processing language
hiccup
Noise input for playing games handsfree
noggin
A face tracking utility, often for playing games
numen
Voice control for handsfree computing
handsfree.dev
Handsfree FOSS Website
awesome-numen
List of Numen configs and resources
dotool
Command to simulate input anywhere (X11, Wayland, TTYs)
tiles
A desktop environment for voice or keyboard