

I would say that the software side all qualifies. You’re setting up the full software stack; that’s definitely self-“something”.
I, personally, would only consider it “self hosting” if I can take a sledge hammer to the bare metal without getting arrested.
But, I acknowledge that is an arbitrary, puritanical distinction. I don’t look down on VPS; they have specific pros and cons, and I use them myself. I just think that “self hosting” includes hardware factors, not just the software.
Real printers used real paper…