DisabledEtcAptSource reports whether Ubuntu (or similar) has disabled the /etc/apt/sources.list.d/tailscale.list file contents upon upgrade to a new release of the distro.

GetOSVersion returns the OSVersion of current host if available.

New returns a partially populated Hostinfo for the current host.

SetDeviceModel sets the device model for use in Hostinfo updates.

SetOSVersion sets the OS version.

SetPackage sets the packaging type for the app.

EnvType represents a known environment type.