This is a small Flask app I put together to track what songs I listen to on Spotify.
To run your own instance, join the Spotify developer program and create a new project. Make sure to add your desired URL to the "Redirect URIs" field.
Create a file called .env in the root directory that contains the following:
SPOTIFY_CLIENT_ID=<your client id>
SPOTIFY_REDIRECT_URI=<etc.>
SPOTIFY_CLIENT_SECRET=<etc.>
SPOTIFY_ACCESS_TOKEN=<etc.>
Create /etc/systemd/system/radio.service that looks like
[Unit]
Description="Gunicorn instance to serve radio.charles.systems"
After=network.target
[Service]
User=root
ExecStart="/root/radio.charles.systems/startup.sh"
[Install]
WantedBy=multi-user.target
sudo systemctl start radio
sudo systemctl enable radio