neat shore
In the Headscale script, the version pulled if you choose to add the headscale-admin UI is the v0.25.6 release, but 0.26.x is available as a branch. It seems that they did not actually package the version as a release. The version of headscale installed by the script is v0.27.1+dirty.
headscale-admin needs to try to match the release version of headscale in order to correctly function. Currently there are issues with creating preauth keys, managing routes, and more due to the mismatch in version and some of these seemed to have been fixed in the v.0.26 branch, so the bump would be appreciate.
EDIT: Made corrections. I had some incorrect version info up about headscale-admin (far too many tabs open tonight)
devout mist