[jjice]

If you wanted it to be publicly accessible in the future, I think you can rent a cheap VPS (DO Droplet) and set up a VPN, and then connect to that VPN on your Pi. Then you can have Nginx on the VPS and reverse proxy to any services you'd like.

[DictumMortuum]

I've been monitoring what VPSs are an option. I'd like to have something faster, because it'll be cost-effective, but I don't want another headache.

[enneff]

If they're going to spin up a VPS then they might as well decommission the Raspberry Pi, before it decommissions itself. :-)

[DictumMortuum]

Well, most of the services do not even have a noticeable lag, but nextcloud is taxing!

[bananaeater]

They could also try dynamic DNS. I've had success with using ddclient with a personal (sub)domain with NameCheap.