1. This is cool. Have been looking for something like this, having a few production systems that run FFMPEG on command line as part of pipeline. Does this run FFMPEG complied to WASM?
2. Live preview or some kind of "gallery" would enhance the visual exploration. For inserting subtitles, overlays etc with better iteration
3. The demo video being on the border of supporting violent thuggery is the weirdest misuse of such a placement. BigBuckBunny surely would do better (considering it's available in a ton of different formats, framerates, higher quality for further experimentation, too!).
Again with the weirdness, I am not sure this submission should have been accepted though. It's very weird seeing someone post something like this, it's like someone burning themselves to death while shouting TikTok memes. w h y