Videos Made with HTML and JavaScript

I'm sure many of you will have seen the recent videos people are creating with Opus 5.5.

It started with one posted on X by Stephan Livera.

The impressive thing here was that it did all of this using HTML and JavaScript. It's effectively a big browser-based animation, with all the frames being snapshotted and then passed through ffmpeg to turn them into an MP4.

You can watch the video on the original LinkedIn post.