kitty-graphics
Meld, in your terminal — faithful TUI port of the Meld diff/merge tool: 2/3-way file merge, folder compare, VC view, git mergetool, over plain SSH
A terminal UI for Klipper 3D printers, via Moonraker
WaniKani in your terminal: reviews and lessons with kanji images (kitty graphics), pitch accent, reading breakdowns, and a notification daemon with a quick-review popup