I currently rent a VM running nextcloud for family use. It currently shows its age with all the nescessary tinkering to keep it current. (also have to use the hosters db which is .. difficult)
I'm thinking along the same lines...
a smallffpc at home,
dyn to my home ip,
wireguard as a vpn into my home,
The server runs:
radicale caldav carddav,
ksmbd family photos.
my main problem:
this needs to work on ios and android and linux and windows, reliably, which it currently does not in my test setup.
currently lacking a solution for recipe sharing and shopping list sharing. Maybe setting up nextcloud on my own server is less of a hassle_..