This changes the default behavior which opened by default the firewall rules.
The users now need to declare explicitely they want to open the firewall.
This also fixes some various small limitations:
- Drop unnecessary quoting
- Drop duplicated gerbera interface definition
- Fix configuration indentation
In the sense that the pkgs dependency will be pulled if the service is
transcoding enabled. Otherwise, the transcoding part is completely dropped from
the generated configuration.
Since https://github.com/NixOS/nixpkgs/pull/61321, local-fs.target is
part of sysinit.target again, meaning units without
DefaultDependencies=no will automatically depend on it, and the manual
set dependencies can be dropped.
