Add LICENSE (GPLv3)

backend/src/MediaPlayer.ts

@@ -1,3 +1,21 @@
+/*
+ * MediaPlayer.ts
+ * Copyleft 2025 James Magahern <buzzert@buzzert.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+*/
+
 import { ChildProcess, spawn } from "child_process";
 import { Socket } from "net";
 import { WebSocket } from "ws";