home-manager doesn't provide a systemd service itself.
That's why we build one ourself.
That also revealed a change in our directory structure.
The structure is now documented within readme.
Move all packages to home.nix and remove `my-packages` derivate.
Also define dunst service and remove readme entry related to
configuration and services. Those are now maintained via home-manager.
The "update" section in readme got updated to reflect new home-manager.
The service can not be enabled, as it doesn't contain the ``[Install]``.
The overlay patches that two lines to the service.
That's to my current knowledge.
In order to document the contents of the folder.
How to install and run daily tasks like updating.
Also might increase in future to include further info.
Daniel Siepmann