another reorg; add options for full or minimal helix install

configuration/modules/gaming.nix

@@ -0,0 +1,19 @@
+{ ... }:
+
+{
+  hardware.graphics.enable32Bit = true; # For 32 bit applications
+  hardware.steam-hardware.enable = true;
+
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
+    dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
+    #gamescopeSession.enable = true;
+    protontricks.enable = true;
+  };
+  programs.gamemode.enable = true;
+  programs.gamescope.enable = true;
+
+  # ensure users who need access to this have `cdrom` as `extraGroups`
+  programs.cdemu.enable = true;
+}

configuration/modules/laptop.nix

@@ -0,0 +1,21 @@
+{ ... }:
+
+{
+  services.power-profiles-daemon.enable = false;
+  services.tlp = {
+    enable = true;
+    settings = {
+      RESTORE_DEVICE_STATE_ON_STARTUP = 1;
+      USB_AUTOSUSPEND = 0;
+      PLATFORM_PROFILE_ON_AC = "performance";
+      PLATFORM_PROFILE_ON_BAT = "low-power";
+      CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
+      CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+      CPU_BOOST_ON_AC = 1;
+      CPU_BOOST_ON_BAT = 0;
+    };
+  };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  services.libinput.enable = true;
+}

configuration/modules/virtualisation.nix

@@ -0,0 +1,26 @@
+{ ... }:
+
+{
+  virtualisation = {
+    containers = {
+      # Enable common container config files in /etc/containers
+      enable = true;
+    };
+    libvirtd = {
+      enable = true;
+    };
+    # remember to add the necessary users to the podman group
+    podman = {
+      enable = true;
+      # Create a `docker` alias for podman, to use it as a drop-in replacement
+      dockerCompat = true;
+      # Required for containers under podman-compose to be able to talk to each other.
+      defaultNetwork.settings.dns_enabled = true;
+    };
+    waydroid = {
+      enable = true;
+    };
+  };
+  programs.virt-manager.enable = true;
+}
+