A Snake game written in Nim targetting JavaScript in a web browser: http://picheta.me/snake/.
Create a snake.service file in /lib/systemd/system/ (or any of the other locations described here), put this in it:
[Unit]
Description=snake
After=network.target httpd.service
Wants=network-online.target
[Service]
Environment=IPSTACK_KEY=<YOUR_IPSTACK_KEY_HERE>
Type=simple
WorkingDirectory=/home/user/dev/snake/
ExecStart=/usr/bin/stdbuf -oL /home/user/dev/snake/snake/server
Restart=always
RestartSec=2
User=dom
[Install]
WantedBy=multi-user.target