Nice project!

Only somewhat related, but for myself personally, I've realized that the default UI for YouTube promotes doom scrolling as much as it possibly can. It seems to have a negative effect on my mental health and habits. So I live mostly without YouTube now, with only some occasional (once every few weeks), externally linked videos, that I usually download via yt-dlp or just quickly watch online. For online watching, I broke the page so bad with uBO that the page barely works, and there are no recommendations or after-you-finished-viewing transitions.

This approach seems to work well. I find YT to be a really dangerous place. In one phrase, "sweet death".