Notes: Shotcut by follower

Cross platform Free/Open Source video editor

Site: https://www.shotcut.org/

Repository: https://github.com/mltframework/shotcut

Keyboard shortcuts: https://www.shotcut.org/howtos/keyboard-shortcuts/

Contour Shuttle (semi-)support: https://www.shotcut.org/howtos/contour-shuttle/ (I've not actually managed to get it working yet.)