furthre config on laptop

system/pc/audio/pipewire.nix

@@ -0,0 +1,20 @@
+{ config, pkgs, ... }:
+
+{
+  # Install tools
+  environment.systemPackages = with pkgs; [
+    pavucontrol
+  ];
+
+  # Enable PipeWire and its PulseAudio compatibility layer
+  services.pipewire = {
+    enable = true;
+    audio.enable = true;
+    pulse.enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+  };
+
+  # Disable legacy PulseAudio
+  services.pulseaudio.enable = false;
+}

system/pc/audio/pulseaudio.nix

@@ -0,0 +1,18 @@
+{ config, lib, pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    pavucontrol
+  ];
+  services.pipewire.enable = false;
+  services.pulseaudio.enable = true;
+  services.pulseaudio.configFile = pkgs.writeText "default.pa" ''
+    load-module module-bluetooth-policy
+    load-module module-bluetooth-discover
+    ## module fails to load with 
+    ##   module-bluez5-device.c: Failed to get device path from module arguments
+    ##   module.c: Failed to load module "module-bluez5-device" (argument: ""): initialization failed.
+    # load-module module-bluez5-device
+    # load-module module-bluez5-discover
+  '';
+  
+}

system/pc/default.nix

@@ -0,0 +1,7 @@
+{ config, lib, ... }:
+
+{
+  boot.blacklistedKernelModules = lib.optionals (!config.hardware.enableRedistributableFirmware) [
+    "ath3k"
+  ];
+}

system/pc/laptop/default.nix

@@ -0,0 +1,13 @@
+{ config, lib, ... }:
+
+{
+  imports = [ ../. ];
+
+  # Gnome 40 introduced a new way of managing power, without tlp.
+  # However, these 2 services clash when enabled simultaneously.
+  # https://github.com/NixOS/nixos-hardware/issues/260
+  services.tlp.enable = lib.mkDefault (
+    (lib.versionOlder (lib.versions.majorMinor lib.version) "21.05")
+    || !config.services.power-profiles-daemon.enable
+  );
+}

system/pc/ssd/default.nix

@@ -0,0 +1,5 @@
+{ lib, ... }:
+
+{
+  services.fstrim.enable = lib.mkDefault true;
+}