enable virtualization, audio config and various other settings for nixos

nixos/default.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
 {
   imports = [ 
@@ -36,5 +36,61 @@
 
   };
 
+  virtualisation.libvirtd.enable = true;
+  programs.virt-manager.enable = true;
+
+  programs.firefox.enable = true;
+  programs.adb.enable = true;
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  users.users.reo = {
+    isNormalUser = true;
+    description = "reo";
+    extraGroups = [ "networkmanager" "wheel" "adbusers" ];
+    packages = with pkgs; [
+      kdePackages.kate
+    #  thunderbird
+    ];
   };
+
+  # Enable sound with pipewire.
+  hardware.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    jack.enable = true;
+  };
+
+  services.xserver.enable = true;
+
+  # Enable the KDE Plasma Desktop Environment.
+  services.displayManager.sddm.enable = true;
+  services.desktopManager.plasma6.enable = true;
+
+  networking.hostName = "emre-desktop";
+
+
+  environment.variables =
+    let
+      makePluginPath = format:
+        (lib.makeSearchPath format [
+          "$HOME/.nix-profile/lib"
+          "/run/current-system/sw/lib"
+          "/etc/profiles/per-user/$USER/lib"
+        ])
+        + ":$HOME/.${format}";
+    in
+    {
+      DSSI_PATH = makePluginPath "dssi";
+      LADSPA_PATH = makePluginPath "ladspa";
+      LV2_PATH = makePluginPath "lv2";
+      LXVST_PATH = makePluginPath "lxvst";
+      VST_PATH = makePluginPath "vst";
+      VST3_PATH = makePluginPath "vst3";
+    };
 }