Reloading the video page seems to break the route and returns a 404 error on github pages.

Seems like the github pages didn't work

I just realized that i didn't have permission to fork your project without a compatible license, could you maybe add one?

I cant work on my fork otherwise and would need to take it down.

Unfortunately, search has stopped working. I also noticed the Trending page fails to retrieve videos.

I think one possible solution is to have option for users to choose from a variety of Invidious instances. Perhaps Invuedious can fetch working instances from here or here. I don't see any wrench icon on Invuedious, so I'm not sure if this is an existing feature.

I don't know how CloudTube is currently doing it. However, it has a list of Invidious instances to choose from in the settings in case any instance goes down.

It would be easier to manage and requires less manual hacks than spectre

I've seen this issue reported at Plyr's tracker. The fix seems to be to update to the latest CSS.