> No reliance on Syncthing's relay network.

But then you're relying on Tailscale's relays and infrastructure then. All you're doing is shifting the liability and dependency from one company to another... which kinda defeats the point of the whole self-hosting thing doesn't it?

Unless by "Tailscale" you actually meant your own self-hosted Headscale server + your own DERP server + config in a way that there's zero reliance on Tailscale's infrastructure...