Honestly, no idea, worth checking their GitHub etc or their status pages if they have any

Thank you for your insight, I’m assuming the only public part is the UI and coturn (the bit that enables two clients between firewalls to hole-punch)?

Netbird you can still run unlike tailscale with headscale right?

At least hope the backend can be fully ran ?

I’m unsure if it has been mentioned, but a similar tool which is open source (you can run the backend unlike tailscale), netbird

https://netbird.io/

Similar in which regard? Containers can be covered by this, but I’m assuming you mean for things like charts?