added stuff

nyx/homes/notashelf/misc/dconf.nix

@@ -0,0 +1,16 @@
+{
+  dconf.settings = {
+    # this is like a system-wide dark mode switch that some apps respect
+    # equivalent of the following dconf command:
+    # `conf write /org/gnome/desktop/interface/color-scheme "'prefer-dark'"`
+    "org/gnome/desktop/interface" = {
+      color-scheme = "prefer-dark";
+    };
+
+    # tell virt-manager to use the system connection
+    "org/virt-manager/virt-manager/connections" = {
+      autoconnect = ["qemu:///system"];
+      uris = ["qemu:///system"];
+    };
+  };
+}

nyx/homes/notashelf/misc/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./dconf.nix # dconf settings, courtesy of the dconf module
+    ./rnnoise.nix # rnnoise plugin for pipewire
+  ];
+}

nyx/homes/notashelf/misc/rnnoise.nix

@@ -0,0 +1,56 @@
+{
+  osConfig,
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  inherit (osConfig.modules) device;
+
+  format = pkgs.formats.json {};
+
+  acceptedTypes = ["desktop" "laptop"];
+in {
+  config = mkIf (builtins.elem device.type acceptedTypes) {
+    # Write a PipeWire userspace configuration based on werman's noise-supression-for-voice
+    # for usage instructions, see:
+    # <https://github.com/werman/noise-suppression-for-voice?tab=readme-ov-file#linux>
+    xdg.configFile."pipewire/pipewire.conf.d/99-input-denoising.conf".source = format.generate "99-input-denoising.conf" {
+      "context.modules" = [
+        {
+          "name" = "libpipewire-module-filter-chain";
+          "args" = {
+            "node.description" = "Noise Canceling source";
+            "media.name" = "Noise Canceling source";
+            "filter.graph" = {
+              "nodes" = [
+                {
+                  "type" = "ladspa";
+                  "name" = "rnnoise";
+                  "plugin" = "${pkgs.rnnoise-plugin}/lib/ladspa/librnnoise_ladspa.so";
+                  "label" = "noise_suppressor_mono"; # or "noise_suppressor_stereo", consumes twice the resources
+                  "control" = {
+                    "VAD Threshold (%)" = 50.0;
+                    "VAD Grace Period (ms)" = 200;
+                    "Retroactive VAD Grace (ms)" = 0;
+                  };
+                }
+              ];
+            };
+            "audio.position" = ["FL" "FR"];
+            "capture.props" = {
+              "node.name" = "effect_input.rnnoise";
+              "node.passive" = true;
+              "audio.rate" = 48000;
+            };
+            "playback.props" = {
+              "node.name" = "effect_output.rnnoise";
+              "media.class" = "Audio/Source";
+              "audio.rate" = 48000;
+            };
+          };
+        }
+      ];
+    };
+  };
+}