I don’t know if Tailscale counts because it’s mostly open source (with options to run your own server), but I use it constantly to connect to Home Assistant and Jellyfin on my home server, as well as pairing it with NextDNS (pihole is possible for those that want to go that route) for ad blocking and Mullvad to use them as an exit node.
You can selfhost it with headscale (the server). It’s really simple to set up and use.
I’m also considering moving to zerotier because a) it’s completely opensource and b) the wifi management software I’m looking into (openwisp) has native integration
I don’t know if Tailscale counts because it’s mostly open source (with options to run your own server), but I use it constantly to connect to Home Assistant and Jellyfin on my home server, as well as pairing it with NextDNS (pihole is possible for those that want to go that route) for ad blocking and Mullvad to use them as an exit node.
You can selfhost it with headscale (the server). It’s really simple to set up and use. I’m also considering moving to zerotier because a) it’s completely opensource and b) the wifi management software I’m looking into (openwisp) has native integration