I strongly recommend Overseerr if you are going to run a video server.

Forget piracy. I only host dumps of my physical media (which at least where I am is perfectly legal), but that thing has an database of international streaming soruces. I use it just as a watchlist and to check whether I have access to a thing on a commercial streaming service already. It is effectively Justwatch for your streaming media.

Immich is a pretty obvious thing, too, if you want to get out of commercial image hosting services.

I'd say, though, that's a fairly ambitious plan, and if your self-hosted apps, your home webhosting and your NAS are all going to live on the same home server I'd certainly figure out security and backups before overcommitting. That plan is a lot of hard drives and failure points you're gonna be wrangling.