Boatswain allows you to control Elgato Stream Deck devices.

With Boatswain you will be able to:
<ul><li>Organize your actions in pages and profiles</li><li>Set custom icons to actions</li><li>Control your music player</li><li>Play sound effects during your streams</li><li>Control OBS Studio using Stream Deck (requires the obs-websocket extension)</li><li>Send network requests</li><li>Keep track of your gaming score</li><li>Open files and launch applications</li></ul>