Add mpris support

plugins/shortcuts/mpris.js

@@ -0,0 +1,19 @@
+const mpris = require("mpris-service");
+
+function setupMPRIS() {
+	const player = mpris({
+		name: "youtube-music",
+		identity: "YouTube Music",
+		canRaise: true,
+		supportedUriSchemes: ["https"],
+		supportedMimeTypes: ["audio/mpeg"],
+		supportedInterfaces: ["player"],
+		desktopEntry: "youtube-music",
+	});
+
+	return player;
+}
+
+module.exports = {
+	setupMPRIS,
+};