There are a lot of ways to go. My own isn’t particularly efficient, but it’s an old rack mount server. Everything is built like a tank. It’s robust as hell, and yet everything was well used and cheap. Probably not a good solution if you live somewhere with expensive power, but I don’t.
I’ve been hosting Emby forever (and the requisite software to acquire content 😉).
Recently I added Nextcloud to facilitate cutting several Google products out of my life. Combined with a few FOSS apps, it’s currently doing the job of Drive (storage) and Keep (notes), and I’m planning to move my contacts and calendar this week.
So this isn’t a tool to remind me when it’s time to reorder my 55 gallon drum of personal lubricant?
(Apologies for linking to Amazon… it was them or Walmart and they’re both terrible)