- We are now using `uv`, so documentation has been updated accordingly.
- Commented out instruction on unmaintained things (AUR packages, TUI).
- Add instructions on using systemd services.
Add units for ``systemd`` to easily handle Libervia services on system-wide installation.
There is a service to run a single backend instance for all clients and components, and
another one if administrators prefer isolated instances. The latter one uses a systemd
template system.