More.

I agree nextcloud might be a very good solution.l, specially because all the service you might need are there. The fun factor decreases tough.

Also, while cloudflare is heavily sponsorized in this community I disagree. It's probably the easiest approach but you end up depending on a specific service. Renting a cheap vps (virtual private server) and setting up a VPN or ssh tunneling is the best approach, but slightly more complex. In exchange you are free to migrate to a different vps at any time with basically zero downtime.

Using a VPN is clearly the safest approach but has two limits:

• more complex setup for you users
• cannot expose public services (like sharing photos with friends outside family, or sharing your resumee)

Using ssh tunnels to make your internal server accessible on port 80/443 of the vps instead gives you the maximum freedom, but you run higher risk unless you secure it properly (service separation, https with let's encrypt, strong authentication and so on....)