Other Useful Information
Here are some things you might need to know when using Swing Music.
Standalone Client
In v1.3.0, PWA support was added for mobile use, though it can also be used with desktop. That means you can install the client as an app on your desktop or phone.
On Mobile
The client is unusable as a mobile website due to the browser elements like the URL bar. Therefore, you need to install the client as an app.
If you don't get a prompt asking you to Add Swing Music to Home screen, click the 3 dots at the top right corner and select Add to Home screen.
On Desktop
In Chrome or Edge browser, click the install button in the URL bar.

Firefox desktop does not support the installation of PWAs on localhost. So it's not documented here.
Remote Access
To access your app from outside your local network, you need to set up a reverse proxy. Here are some tools I've tried: