Do you have any advice or suggestions about it?
- Hardware (what should be enough for a local PC, or VPS…)
- Software (OS [Debian, Yunohost, other…], “containerization” (Docker, virtual machines?), dashboard, management, backups, VPN tunneling…)
- “Utilities” to host (Lemmy, Peertube, Matrix, Mastodon, Actual Budget, Jellyfin, Forgejo, Invidious/Piped, local Pi-Hole, email, dedicated videogame servers like for Minecraft, SearXNG, personal file storage like Drive, AI [in the future, when I can afford a rig that can run a local model decently]…)
I’m aware it’s a lot of stuff to take on, so, do you have any advice on where to start? (how to find a cheap PC to experiment with, if not get a VPS, what to test on it, what “utilities” to try self-hosting first…)


Depends if you’re hosting something public, or something private.
For public, a webserver is a simple start. Can be anything you want it to be, but as complexity increases, so does the amount of potential attack vectors, so keep that in mind of you’re considering adding things like WordPress and the like.
For private, a NAS and/or a simple game server is a simple and useful start.
As for how, there’s a million ways to do it, and I’m an old stubborn BOFH that still cling to the old ways of doing it (as in, no VMs, no containers), so I’ll defer to others for that.
While purpose built server hardware is always nice since it comes with some useful additions, the truth is that “any” machine will do. Old discarded PC will do just fine.