[nix-shell:/etc]$ systemctl status headscale
● headscale.service - headscale coordination server for Tailscale
     Loaded: loaded (/etc/systemd/system/headscale.service; enabled; preset: enabled)
     Active: active (running) since Sun 2024-01-14 15:54:34 NZDT; 7h ago
   Main PID: 61416 (headscale)
         IP: 17.5K in, 2.5K out
         IO: 196.0K read, 0B written
      Tasks: 21 (limit: 18913)
     Memory: 21.5M
        CPU: 5.263s
     CGroup: /system.slice/headscale.service
             └─61416 /nix/store/vxxi2swd0pm91a10cbkhk6h5yvhnqwfg-headscale-0.22.3/bin/headscale serve

Jan 14 15:54:34 nixos systemd[1]: Started headscale coordination server for Tailscale.
Jan 14 15:54:34 nixos headscale-start[61416]: 2024-01-14T15:54:34+13:00 WRN 'ip_prefixes' not configured, falling back to default: [100.64.0.0/10]
Jan 14 15:54:34 nixos headscale-start[61416]: 2024-01-14T15:54:34+13:00 WRN 'ip_prefixes' not configured, falling back to default: [100.64.0.0/10]
Jan 14 15:54:36 nixos headscale-start[61416]: 2024-01-14T15:54:36+13:00 WRN Listening without TLS but ServerURL does not start with http://
Jan 14 15:54:36 nixos headscale-start[61416]: 2024-01-14T15:54:36+13:00 INF listening and serving HTTP on: 0.0.0.0:8080
Jan 14 15:54:36 nixos headscale-start[61416]: 2024-01-14T15:54:36+13:00 INF listening and serving metrics on: