

idk how much you know about docker, but that’s how i have everything set up. i use sonarr with prowlarr (indexer) and a torrent downloader. the only thing the isp will care about is downloads so put torrent-dl behind vpn like nord. i use gluetun to do that, but there are other ways too. at the end i use plex because i like the apps ecosystem with music player, but a pass costs like $100 for life. otherwise check out FOSS jellyfin, many users like that.
these apps all have git repos and websites to explain their uses, you’ll be fine with your background. if you haven’t used docker, i recommend it, but its not required for anything, especially on windows
i use duplicati to back up configs and data for docker containers to 2 cloud services. my 8 TB server is almost maxed. i need funds to buy a backup for that and expand.
I know synology (and others probably) have an app where you can back up your data to your friends NAS and vice versa, but that’s taking up their storage too and cost for HDD/SSD may be prohibitive