gate homebrew improt by darwin check to fix building on linux

home-modules/macos.nix

@@ -1,10 +1,33 @@
 { config, lib, pkgs, osConfig, ... }:
 
-{
-  options.lumpiastyHome.macos = lib.mkEnableOption "Macos specific things";
-
+let
+  brewPath = config.homebrew.brewPath;
+in {
   config = lib.mkIf config.lumpiastyHome.macos {
     targets.darwin.copyApps.enable = true;
     targets.darwin.linkApps.enable = false;
+
+    homebrew = {
+      enable = true;
+      brewInstall = true;
+      update = true;
+      upgrade = true;
+      cleanup = true;
+      casks = [
+        "steam"
+      ];
+    };
+
+    home.activation.homebrewInstall = lib.mkForce (
+      lib.hm.dag.entryAfter ["installPackages" "linkGeneration" "createGpgHomedir"] (
+        if config.homebrew.brewInstall then ''
+          if [ ! -f "${brewPath}" ]; then
+            echo "Homebrew not found (${brewPath}), installing..."
+            export PATH="${pkgs.curl}/bin:${pkgs.bash}/bin:${pkgs.coreutils}/bin:${pkgs.gnugrep}/bin:${pkgs.gnused}/bin:$PATH"
+            ${pkgs.bash}/bin/bash -c "$(${pkgs.curl}/bin/curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+          fi
+        '' else ""
+      )
+    );
   };
-}
+}