What type of hardware are you using: VPS bought online What YunoHost version are you running: 12.0.16 What app is this about: Headscale
Describe your issue
From the admin GUI, I select Headscale as the application to install, keep the default options (except a “fake” tld for MagicDNS). The installation proceeds and fails with an error at the “Create permission ‘headscale’” step (see logs).
This URL is either unavailable, or conflicts with the already installed app(s)
Sounds like Headscale need a full domain for itself, but you already have apps installed on that domain. Typically you should create a subdomain dedicated to headscale