Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Blender
Python API is available.
Shortcut
OpenShot
KDEnlive
KDEnLive is an easy-to-use one, however, it is only available for Windows and Linux at this time.
QuickTime
For Windows and macOS only.
References
https://www.doodly.com/