Also give https://kdenlive.org/ https://kdenlive.org/ a try. I settled on it as a high-power, steep learning curve solution when I found myself hitting the wal

Also give https://kdenlive.org/ https://kdenlive.org/ a try. I settled on it as a high-power, steep learning curve solution when I found myself hitting the wall with alternatives. It's clunky but it does everything I need. Like Shotcut, it's all MLT underneath the hood. You can click "Generate script" on the render dialog, and get a .mlt file. Another lead for you: https://github.com/AcademySoftwareFoundation/OpenTimelineIO https://github.com/AcademySoftwareFoundation/OpenTimelineIO