In the past I have used moviepy (https://github.com/Zulko/moviepy https://github.com/Zulko/moviepy) to programatically create videos in Python. At a very high l

In the past I have used moviepy (https://github.com/Zulko/moviepy https://github.com/Zulko/moviepy) to programatically create videos in Python. At a very high level, it manages creation of image frames that are ultimately fed into ffmpeg. It is (was?) a bit buggy sometimes, but it gets the job done. Initially I used it because I couldn't bother with learning any of the free nonlinear video editors on Linux (many of which are pretty flaky/hard to use, or at least were back then). Having become actually become semi-familiar with a couple of NLEs since then, I can say moviepy is a bad NLE replacement for most use cases, but for others it's a real time saver.