It already is.

Just put ‘site:lemmy.world’ into Google to see what it has indexed on that instance for example. I don’t think Lemmy is optimised for search yet, but I saw some GitHub threads around the topic.

Why do you need to host youtube-dl?

How hard is it? Did you use the official guide? I looked into Mastodon and it was a bit too custom and annoying to spin up.

Was it r/cordcutters? So good not self hosting even dumb things especially when friends and family use it. I’d rather just fork out for the bill myself.