Extract the release (or copy build artifacts) to /opt/LEDProgress.
Copy ledprogress.service to /etc/systemd/service/.
Run:
sudo systemctl daemon-reload
sudo systemctl enable ledprogress
sudo systemctl start ledprogress
$ /opt/LEDProgress/LEDProgress.exe -h
Available command line arguments:
-s, --socket <socket>: UNIX socket to connect to
-p, --pin <pin>: The pin the LEDs are run from
-i, --invert: WS281x Invert
-c, --count <count>: The number of LEDs
-b, --brightness <brightness>: Max brighness (0-255)
-h, --help: Display this help text