Hmmm, I repurposed an old PC of mine, only buying large WD red HDDs. If I were to expand, I’d ask friends/family if anyone has an old box to sell. And maybe buy a server rack. Second option would be “used goods websites” and only after that I would be looking to buy new.

That’s because jellyfin+immich+planka+a few static websites really don’t need that much compute power. The heaviest work to be done is playing a movie, which could be done by a laptop. Unless you are planning for many users to use the server at the same time.

I live in slovenia