Not sure what I think about this. I don't use Tailscale because I don't trust their key distribution, and this open source project would solve that, but it might undermine Tailscale's sustainability. This would be a shame because Tailscale is working well with the open source community: open source clients, working well with distros, working well with Linux DNS stack, supporting a more P2P secure Internet, and docume…
You can possibly buy a subscription but tell the devs that you're using headscale. If enough people do this they might make a host-your-own version like bitwarden.
Both look like great products, I just don't need what they're offering enough to accept their downsides.