flake.nix

@@ -92,7 +92,8 @@
       importDir =
         dir:
         (lib.attrsets.mapAttrs' (
-          m: _: lib.attrsets.nameValuePair (lib.strings.removeSuffix ".nix" m) (import "${dir}/${m}")
+          m: _:
+          lib.attrsets.nameValuePair (lib.strings.removeSuffix ".nix" m) { imports = [ "${dir}/${m}" ]; }
         ) (builtins.readDir dir));
     in
     rec {
@@ -113,6 +114,16 @@
                 stateVersion = "22.11";
                 autoUpgrade.flake = "git+https://git.berlin.ccc.de/vinzenz/nixos-configuration.git";
               };
+
+              nixpkgs.overlays = [
+                overlays.unstable-packages
+                overlays.zerforschen
+              ];
+
+              nix.settings.experimental-features = [
+                "nix-command"
+                "flakes"
+              ];
             }
 
             ./hosts/${device}/hardware.nix
@@ -124,27 +135,25 @@
             self.nixosModules.autoupdate
             self.nixosModules.openssh
             self.nixosModules.tailscale
+            self.nixosModules.allowed-unfree-list
+            self.nixosModules.extra-caches
             ./modules/nixpkgs.nix
-
-            {
-              nixpkgs.overlays = [
-                overlays.unstable-packages
-                overlays.zerforschen
-              ];
-            }
           ]
           ++ (nixpkgs.lib.optionals (builtins.elem device homeDevices) [
             {
               home-manager.extraSpecialArgs = specialArgs;
 
               time.timeZone = "Europe/Berlin";
+
+              home-manager.sharedModules = [
+                self.homeModules.adwaita
+              ];
             }
 
             self.nixosModules.pkgs-unstable
             self.nixosModules.niri
             self.nixosModules.kdeconnect
             self.nixosModules.en-de
-            self.nixosModules.adwaita
             self.nixosModules.gnome
             ./modules/home-manager.nix
 
@@ -178,6 +187,8 @@
         };
       };
 
+      homeModules = importDir ./homeModules;
+
       formatter = forAllSystems ({ pkgs, ... }: pkgs.nixfmt-tree);
     };
 }

hosts/ronja-pc/imports.nix

@@ -1,7 +1,9 @@
+{ nixosModules, ... }:
 {
   imports = [
     ../../modules/gnome.nix
     ../../modules/gaming.nix
+    nixosModules.steam
     ../../modules/desktop-environment.nix
     ../../modules/desktop-hardware.nix
 

hosts/vinzenz-lpt2/imports.nix

@@ -3,6 +3,7 @@
   imports = [
     ../../modules/gnome.nix
     ../../modules/gaming.nix
+    nixosModules.steam
     nixosModules.printing
     nixosModules.podman
     ../../modules/desktop-environment.nix

hosts/vinzenz-pc2/imports.nix

@@ -3,6 +3,7 @@
   imports = [
     ../../modules/gnome.nix
     ../../modules/gaming.nix
+    nixosModules.steam
     nixosModules.printing
     nixosModules.podman
     #../../modules/niri.nix

modules/desktop-environment.nix

@@ -56,6 +56,7 @@
         enable = true;
         binfmt = true;
       };
+      xwayland.enable = true;
     };
 
     systemd = {

modules/gaming.nix

@@ -8,7 +8,6 @@
         extraPackages32 = with pkgs; [ mangohud ];
       };
 
-      steam-hardware.enable = true;
       xpadneo.enable = true;
     };
 
@@ -23,59 +22,9 @@
       lutris
     ];
 
-    programs = {
-      xwayland.enable = true;
-      steam = {
-        enable = true;
-        remotePlay.openFirewall = true;
-        dedicatedServer.openFirewall = true;
-        localNetworkGameTransfers.openFirewall = true;
-        gamescopeSession.enable = false;
-      };
-      gamemode.enable = true;
-    };
-
-    networking.firewall = {
-      allowedUDPPorts = [
+    networking.firewall.allowedUDPPorts = [
       # Factorio
       34197
-
-        # steam network transfer
-        3478
-      ];
-
-      allowedTCPPorts = [
-        # steam network transfer
-        24070
-      ];
-
-      allowedTCPPortRanges = [
-        # steam network transfer
-        {
-          from = 27015;
-          to = 27050;
-        }
-      ];
-
-      allowedUDPPortRanges = [
-        # steam network transfer
-        {
-          from = 4379;
-          to = 4380;
-        }
-        {
-          from = 27000;
-          to = 27100;
-        }
-      ];
-    };
-
-    allowedUnfreePackages = [
-      "steam"
-      "steam-original"
-      "steam-run"
-      "steam-unwrapped"
-      "ut1999"
     ];
   };
 }

modules/nixpkgs.nix

@@ -1,35 +1,4 @@
-{ config, lib, ... }:
 {
-  options.allowedUnfreePackages = lib.mkOption {
-    type = lib.types.listOf lib.types.str;
-    default = [ ];
-    example = [ "steam" ];
-  };
-  config = {
-    nixpkgs.config = {
-      # https://github.com/NixOS/nixpkgs/issues/197325#issuecomment-1579420085
-      allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) config.allowedUnfreePackages;
-    };
-
-    nix.settings = {
-      substituters = [
-        "https://cache.nixos.org/"
-        "https://nix-community.cachix.org"
-        "https://cache.lix.systems"
-        "https://niri.cachix.org"
-      ];
-      trusted-public-keys = [
-        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
-        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-        "cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o="
-        "niri.cachix.org-1:Wv0OmO7PsuocRKzfDoJ3mulSl7Z6oezYhGhR+3W2964="
-      ];
-      experimental-features = [
-        "nix-command"
-        "flakes"
-      ];
-    };
-
   documentation = {
     enable = true; # documentation of packages
     nixos.enable = false; # nixos documentation
@@ -37,5 +6,4 @@
     info.enable = false; # info pages and the info command
     doc.enable = false; # documentation distributed in packages' /share/doc
   };
-  };
 }

nixosModules/allowed-unfree-list.nix

@@ -0,0 +1,15 @@
+{ lib, config, ... }:
+{
+  options.allowedUnfreePackages = lib.mkOption {
+    type = lib.types.listOf lib.types.str;
+    default = [ ];
+    example = [ "steam" ];
+  };
+
+  config = {
+    nixpkgs.config = {
+      # https://github.com/NixOS/nixpkgs/issues/197325#issuecomment-1579420085
+      allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) config.allowedUnfreePackages;
+    };
+  };
+}

nixosModules/extra-caches.nix

@@ -0,0 +1,16 @@
+{
+  nix.settings = {
+    substituters = [
+      "https://cache.nixos.org/"
+      "https://nix-community.cachix.org"
+      "https://cache.lix.systems"
+      "https://niri.cachix.org"
+    ];
+    trusted-public-keys = [
+      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      "cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o="
+      "niri.cachix.org-1:Wv0OmO7PsuocRKzfDoJ3mulSl7Z6oezYhGhR+3W2964="
+    ];
+  };
+}

nixosModules/steam.nix

@@ -0,0 +1,48 @@
+{ nixosModules, ... }:
+{
+  imports = [ nixosModules.allowed-unfree-list ];
+
+  hardware.steam-hardware.enable = true;
+
+  programs = {
+    steam = {
+      enable = true;
+      remotePlay.openFirewall = true;
+      dedicatedServer.openFirewall = true;
+      localNetworkGameTransfers.openFirewall = true;
+      gamescopeSession.enable = false;
+    };
+    gamemode.enable = true;
+  };
+
+  # steam network transfer
+  networking.firewall = {
+    allowedUDPPorts = [ 3478 ];
+    allowedTCPPorts = [ 24070 ];
+
+    allowedTCPPortRanges = [
+      {
+        from = 27015;
+        to = 27050;
+      }
+    ];
+
+    allowedUDPPortRanges = [
+      {
+        from = 4379;
+        to = 4380;
+      }
+      {
+        from = 27000;
+        to = 27100;
+      }
+    ];
+  };
+
+  allowedUnfreePackages = [
+    "steam"
+    "steam-original"
+    "steam-run"
+    "steam-unwrapped"
+  ];
+}