I don't give access to any of my services to anyone, especially family or friends. LOL However, you could investigate Tailscale, Headscale, Wireguard. Additionally, if you set up Cloudflare Tunnel/Zero Trust, you can give individual users a unique access to your server. For example: You can allow alice@mysupercoolserver.com to access https://home.mysupercoolserver/shell but deny bob@mysupercoolserver.com. Only allow bob access only to https://home.mysupercoolserver/media.