A lot of pointless stuff

engine/src/audio_engine/dummy_ab.rs

@@ -0,0 +1,15 @@
+use crate::audio_engine::AudioBackend;
+
+struct DummyAudioBackend {}
+
+impl DummyAudioBackend {
+    fn new() -> Self {
+        Self {  }
+    }
+}
+
+impl AudioBackend for DummyAudioBackend {
+    fn start_client(&mut self) -> Result<(), Box<dyn std::error::Error>> {
+        todo!()
+    }
+}