[Unit]
Description=Grzegorz at display %i

Requires=xorg@%i.socket
Requires=xorg@%i.service
After=xorg@%i.socket
After=xorg@%i.service

[Service]
Environment="DISPLAY=:%i"
ExecStart=/usr/bin/python grzegorz/main.py

[Install]
WantedBy=default.target