Run tailscale commands

I’m trying to configure https for tailscale following this guide:

somehow I need to be able to run tailscale cert to that it provisions a certificate. What is the “umbrel way” of doing this?

im also very interested in a solution for this. tailscale website says this is for v 1.14. i would like to know what version is availible on umbrel. . .

you can see the version in tailscale control panel under the OS column. Mine reads 1.22