Welcome to Hacker News. And what a post for your first post, too :) Omniclip is already at the level where I could have used this for a recent project, for which I had to inset a video inside a slideshow (I ended up using pymovie, but it was time-consuming without a GUI to help me align everything). As for feedback, I think an undo system could be a good next feature. I really appreciate that it's FOSS!