demure-led-clock/led_matrix.service

[Unit]
Description=Matrix Display Service
After=led_matrix.service

[Service]
ExecStart=/led_matrix/demure_clock.py --led-rows=64 --led-cols=64 --led-gpio-mapping=adafruit-hat --led-slowdown-gpio=4
Restart=always
RestartSec=1

[Install]
WantedBy=multi-user.target