[nix] Messing around with how to override desktop files

flake.nix

@@ -32,12 +32,36 @@
 
   outputs =
     { self, nixpkgs, ... }@inputs:
+    let
+      local = import ./lib;
+      mkNixosConfig =
+        {
+          path,
+          system ? "x86_64-linux",
+          nixpkgs ? inputs.nixpkgs-unstable,
+        }:
+        nixpkgs.lib.nixosSystem {
+          inherit system;
+          modules = [
+            inputs.home-manager.nixosModules.home-manager
+            {
+              home-manager.useGlobalPkgs = true;
+              home-manager.useUserPackages = true;
+              home-manager.extraSpecialArgs = {
+                inherit inputs local;
+              };
+            }
+            path
+          ];
+          specialArgs = {
+            inherit inputs local;
+          };
+        };
+    in
     {
       nixosConfigurations = {
-        altair = (import ./system/hosts/altair) {
-          inherit inputs;
-          inherit self;
-          nixpkgs = inputs.nixpkgs-unstable;
+        altair = mkNixosConfig {
+          path = ./system/hosts/altair;
         };
         mcp = (import ./system/hosts/mcp) {
           inherit inputs;

home-manager/features/gaming.nix

@@ -1,4 +1,16 @@
-{ pkgs, ... }:
+{ pkgs, local, ... }:
+# let
+#   patched-desktop =
+#     pkgs.runCommand "patched-wowup-cf-desktop"
+#       {
+#         desktop = "${pkgs.wowup-cf}/share/applications/wowup-cf.desktop";
+#       }
+#       ''
+#         mkdir -p $out
+#         substitute "$desktop" "$out/wowup-cf.desktop" \
+#           --replace-fail 'Exec=wowup-cf' 'Exec=wowup-cf --enable-features=UseOzonePlatform --ozone-platform=wayland --disable-gpu'
+#       '';
+# in
 {
   home.packages = with pkgs; [
     # Gaming
@@ -16,12 +28,15 @@
     wowup-cf
   ];
 
-  xdg.desktopEntries = {
+  # xdg.dataFile."applications/wowup-cf.desktop" = {
+  #   force = true;
+  #   source = "${patched-desktop}/wowup-cf.desktop";
+  # };
+
   # wowup needs options to work under wayland.
-    wowup-cf = {
+  xdg.desktopEntries.wowup-cf = local.electronDesktopEntry {
     name = "WowUp";
-      # Custom options to reduce flickering under wayland.
-      exec = "wowup-cf --no-sandbox --enable-features=UseOzonePlatform --ozone-platform=wayland --disable-gpu %U";
+    exec = "wowup-cf --no-sandbox";
     terminal = false;
     type = "Application";
     icon = "wowup-cf";
@@ -30,5 +45,4 @@
       "Game"
     ];
   };
-  };
 }

lib/default.nix

@@ -0,0 +1,3 @@
+{
+  inherit (import ./electron.nix) electronDesktopEntry;
+}

lib/electron.nix

@@ -0,0 +1,9 @@
+{
+  # Adds extra arguments to avoid flickering under wayland.
+  electronDesktopEntry =
+    desktop:
+    desktop
+    // {
+      exec = "${desktop.exec} --enable-features=UseOzonePlatform --ozone-platform=wayland --disable-gpu";
+    };
+}

system/hosts/altair/default.nix

@@ -1,13 +1,15 @@
-{ nixpkgs, inputs, ... }:
-nixpkgs.lib.nixosSystem {
-  system = "x86_64-linux";
-  modules = [
+{
+  ...
+}:
+{
+  imports = [
     ./configuration.nix
     ./hardware-configuration.nix
     ../../authorized-keys.nix
-    inputs.home-manager.nixosModules.home-manager
-    {
+  ];
+
   nixpkgs.config.allowUnfree = true;
+
   home-manager.users.drew =
     { ... }:
     {
@@ -15,14 +17,4 @@ nixpkgs.lib.nixosSystem {
         ./drew.nix
       ];
     };
-      home-manager.useGlobalPkgs = true;
-      home-manager.useUserPackages = true;
-      home-manager.extraSpecialArgs = {
-        inherit inputs;
-      };
-    }
-  ];
-  specialArgs = {
-    inherit inputs;
-  };
 }

system/hosts/mcp/containers/lib.nix

@@ -17,10 +17,11 @@ in
     hostRuleHavenisms
     localHostRuleHavenisms
     havenisms
-    blazestar;
+    blazestar
+    ;
 
-
-  mkContainer = {
+  mkContainer =
+    {
       image,
       hostName,
       port,
@@ -33,10 +34,18 @@ in
       environmentFiles ? [ ],
       public ? false,
     }:
-    let routerRule = if public then hostRule hostName domain else localHostRule hostName domain;
+    let
+      routerRule = if public then hostRule hostName domain else localHostRule hostName domain;
     in
     {
-      inherit image dependsOn volumes environment environmentFiles ports;
+      inherit
+        image
+        dependsOn
+        volumes
+        environment
+        environmentFiles
+        ports
+        ;
       hostname = "${hostName}.${domain}";
       autoStart = true;
       extraOptions = [
@@ -57,13 +66,16 @@ in
   # user.
   #
   # Note that this returns a _module_ so that it can be imported and provide many different config values.
-  mkMariaDbContainer = {
+  mkMariaDbContainer =
+    {
       name,
       uid,
       gid,
       passwordSecret,
       directory,
-  }: { config, ... }: {
+    }:
+    { config, ... }:
+    {
       virtualisation.oci-containers.containers."${name}-mariadb" = {
         image = "lscr.io/linuxserver/mariadb:latest";
         autoStart = true;