“Youlag Theme for FreshRSS” provides a video-focused browsing experience for your RSS subscriptions. It tries to provide a similar experience to YouTube, primarily through its layout using CSS, but also a little bit of Javascript.

Git repo for more details: https://github.com/civilblur/youlag

In case you’re not aware, “FreshRSS is a self-hosted RSS feed aggregator”.

The idea is that you subscribe to content creators through YouTube’s RSS feed https://www.youtube.com/feeds/videos.xml?channel_id=%7Bid_goes_here%7D, then browse, watch, save to playlist (“label”), right within FreshRSS.

There’s also third-party extension for FreshRSS that provides the ability to use Invidious, but as we all know, the public instances are unfortunately struggling quite a bit as of writing.