added mumble

modules/features/mumble/default.nix

@@ -0,0 +1,75 @@
+{
+  self,
+  inputs,
+  ...
+}: {
+  flake.nixosModules.mumble = {
+    pkgs,
+    lib,
+    ...
+  }: let
+    modules = with self.nixosModules; [
+      audio
+    ];
+  in {
+    imports = modules;
+    services.murmur = {
+      enable = true;
+      bandwidth = 540000;
+      bonjour = true;
+      password = "password";
+      autobanTime = 0;
+    };
+
+    environment.systemPackages = with pkgs; [
+      mumble
+    ];
+
+    services.pipewire.extraConfig.pipewire = {
+      "97-null-sink" = {
+        "context.objects" = [
+          {
+            factory = "adapter";
+            args = {
+              "factory.name" = "support.null-audio-sink";
+              "node.name" = "Null-Sink";
+              "node.description" = "Null Sink";
+              "media.class" = "Audio/Sink";
+              "audio.position" = "FL,FR";
+            };
+          }
+          {
+            factory = "adapter";
+            args = {
+              "factory.name" = "support.null-audio-sink";
+              "node.name" = "Null-Source";
+              "node.description" = "Null Source";
+              "media.class" = "Audio/Source";
+              "audio.position" = "FL,FR";
+            };
+          }
+        ];
+      };
+      "98-virtual-mic" = {
+        "context.modules" = [
+          {
+            name = "libpipewire-module-loopback";
+            args = {
+              "audio.position" = "FL,FR";
+              "node.description" = "Mumble as Microphone";
+              "capture.props" = {
+                # Mumble's output node name.
+                "node.target" = "Mumble";
+                "node.passive" = true;
+              };
+              "playback.props" = {
+                "node.name" = "Virtual-Mumble-Microphone";
+                "media.class" = "Audio/Source";
+              };
+            };
+          }
+        ];
+      };
+    };
+  };
+}