If you use Vivaldi, Brave, Iridium or any other Chromium-based browser and listen to music on Plex or YouTube Music, download the extension and simply enter the server URL as well as your API key in the relevant fields. They will turn green if the server is accessible.
You can also use any standard-compliant scrobbler. For GNUFM (audioscrobbler) scrobblers, enter <spanclass="stats"><spanname="serverurl">yourserver.tld</span>/api/s/audioscrobbler</span> as your Gnukebox server and your API key as the password. For Listenbrainz scrobblers, use <spanclass="stats"><spanname="serverurl">yourserver.tld</span>/api/s/listenbrainz</span> as the API URL and your API key as token.
If you use another browser or another music player, you could try to code your own extension. The API is super simple! Just send a POST HTTP request to
Switching from Last.fm? <aclass="textlink"href="https://benjaminbenben.com/lastfm-to-csv/">Download all your data</a> and run the command <spanclass="stats">maloja import <i>(the file you just downloaded)</i></span>.
After you've scrobbled for a bit, you might want to check the <aclass="textlink"href="/issues">Issues page</a> to see if you need to set up some rules. You can also manually add rules in your server's "rules" directory - just add your own .tsv file and read the instructions on how to declare a rule.
<aclass="textlink"target="_blank"rel="noopener noreferrer"href="https://paypal.me/krateng">PayPal</a> or <aclass="textlink"href="bitcoin:1krat8JMniJBTiHftMfR1LtF3Y1w5DAxx">Bitcoin</a>.
Done! Visit <aclass="textlink"href="/"><spanname="serverurl">yourserver.tld</span></a> (or your public / proxy URL) to look at your overview page. Almost everything is clickable!