music nix for desktops

profiles/desktop/music.nix

@@ -0,0 +1,69 @@
+{ pkgs, ...}:
+
+{
+  environment.systemPackages = [
+    tidal
+    vcv-rack
+    supercollider
+    orca-c
+    carla
+    helm
+    sunvox
+  ]; 
+
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = false;
+    jack.enable = true;
+    # Low latency pipewire
+    # The best way to get everything working is to keep increasing the quant value until you get no crackles (underruns) or until you get audio again (in case there wasn't any). This won't guarantee the lowest possible latency, but will provide a decent one paired with stable audio. 
+    config.pipewire = {
+      "context.properties" = {
+        "link.max-buffers" = 16;
+        "log.level" = 2;
+        "default.clock.rate" = 48000;
+        "default.clock.quantum" = 32;
+        "default.clock.min-quantum" = 32;
+        "default.clock.max-quantum" = 32;
+        "core.daemon" = true;
+        "core.name" = "pipewire-0";
+      };
+      "context.modules" = [
+        {
+          name = "libpipewire-module-rtkit";
+          args = {
+            "nice.level" = -15;
+            "rt.prio" = 88;
+            "rt.time.soft" = 200000;
+            "rt.time.hard" = 200000;
+          };
+          flags = [ "ifexists" "nofail" ];
+        }
+
+        { name = "libpipewire-module-protocol-native"; }
+        { name = "libpipewire-module-profiler"; }
+        { name = "libpipewire-module-metadata"; }
+        { name = "libpipewire-module-spa-device-factory"; }
+        { name = "libpipewire-module-spa-node-factory"; }
+        { name = "libpipewire-module-client-node"; }
+        { name = "libpipewire-module-client-device"; }
+
+        {
+          name = "libpipewire-module-portal";
+          flags = [ "ifexists" "nofail" ];
+        }
+        {
+          name = "libpipewire-module-access";
+          args = {};
+        }
+
+        { name = "libpipewire-module-adapter"; }
+        { name = "libpipewire-module-link-factory"; }
+        { name = "libpipewire-module-session-manager"; }
+      ];
+    };
+  };
+}