[Unit]
Description=LED Matrix Control
After=sys-devices-pci0000:00-0000:00:08.1-0000:c1:00.0-drm-card1-card1\x2deDP\x2d1-amdgpu_bl1.device
After=sys-devices-pci0000:00-0000:00:08.3-0000:c3:00.0-usb3-3\x2d3-3\x2d3.3-3\x2d3.3:1.0-tty-ttyACM0.device

[Service]
Restart=always
RestartSec=.5s
User= #put your user here
WorkingDirectory= #the directory where the script and font are
ExecStart=/usr/bin/python3 led_matrix.py

[Install]
WantedBy=multi-user.target