darwin compatibility logic & darwin mcp

hosts/mac/home.nix

@@ -1,11 +1,22 @@
 {
   inputs,
+  pkgs,
   ...
 }:
 {
   home = {
-    username = "cdreyes";
+    username = "carlosdaniloreyesmartinez";
-    homeDirectory = "/Users/cdreyes";
+    homeDirectory = "/Users/carlosdaniloreyesmartinez";
+    packages = [ pkgs.google-cloud-sdk ];
+  };
+  programs = {
+    starship.enable = true;
+    kitty = {
+      enable = true;
+      shellIntegration.enableBashIntegration = false;
+      shellIntegration.enableZshIntegration = true;
+      settings.term = "xterm-256color";
+    };
   };
   my = import ./toggles.nix { inherit inputs; };
 }

modules/dev/emacs/common.nix

@@ -5,28 +5,47 @@
   emacsExtraConfig,
   emacsExtraPackages,
 }:
+let
+  clipboardPackages =
+    if pkgs.stdenv.isDarwin then
+      builtins.attrValues {
+        inherit (pkgs) pngpaste;
+      }
+    else
+      builtins.attrValues {
+        inherit (pkgs)
+          xclip
+          wl-clipboard-rs
+          ;
+      };
+  linuxWindowPackages = lib.optionals pkgs.stdenv.isLinux (
+    builtins.attrValues {
+      inherit (pkgs.xorg) xwininfo;
+      inherit (pkgs) xdotool;
+    }
+  );
+in
 {
-  packages = builtins.attrValues {
+  packages =
-    inherit (pkgs.xorg) xwininfo;
+    linuxWindowPackages
-    inherit (pkgs)
+    ++ clipboardPackages
-      xdotool
+    ++ builtins.attrValues {
-      xclip
+      inherit (pkgs)
-      wl-clipboard-rs
+        fd
-      fd
+        fzf
-      fzf
+        ripgrep
-      ripgrep
+        tree-sitter
-      tree-sitter
+        graphviz
-      graphviz
+        tetex
-      tetex
+        languagetool
-      languagetool
+        yaml-language-server
-      yaml-language-server
+        markdownlint-cli
-      markdownlint-cli
+        ;
-      ;
+      inherit (pkgs.nodePackages)
-    inherit (pkgs.nodePackages)
+        vscode-json-languageserver
-      vscode-json-languageserver
+        prettier
-      prettier
+        ;
-      ;
+    };
-  };
   extraPackages =
     epkgs:
     let

modules/shell/tools/home.nix

@@ -111,9 +111,11 @@ in
               fi
             ''
             ''
-              if command -v fzf-share >/dev/null; then
+              if [ -f "${pkgs.fzf}/share/fzf/key-bindings.zsh" ]; then
-              source "$(fzf-share)/key-bindings.bash"
+              source "${pkgs.fzf}/share/fzf/key-bindings.zsh"
-              source "$(fzf-share)/completion.bash"
+              fi
+              if [ -f "${pkgs.fzf}/share/fzf/completion.zsh" ]; then
+              source "${pkgs.fzf}/share/fzf/completion.zsh"
               fi
             '';
       };

parts/core.nix

@@ -9,7 +9,10 @@ let
     };
 in
 {
-  systems = [ system ];
+  systems = [
+    system
+    "aarch64-darwin"
+  ];
   flake = {
     lib = {
       commonOverlays = mkpkgs: inputs: [

parts/devshells.nix

@@ -1,16 +1,23 @@
 { inputs, ... }:
 {
-  perSystem = _: {
+  perSystem =
-    devShells =
+    { pkgs, ... }:
-      let
+    {
-        hostShells = inputs.self.nixosConfigurations.emacs.config.devShells;
+      devShells =
-      in
+        if pkgs.stdenv.isLinux then
-      inputs.self.lib.langList
+          let
-      |> builtins.filter (name: hostShells ? ${name})
+            hostShells = inputs.self.nixosConfigurations.emacs.config.devShells;
-      |> map (name: {
+          in
-        inherit name;
+          inputs.self.lib.langList
-        value = hostShells.${name};
+          |> builtins.filter (name: hostShells ? ${name})
-      })
+          |> map (name: {
-      |> builtins.listToAttrs;
+            inherit name;
-  };
+            value = hostShells.${name};
+          })
+          |> builtins.listToAttrs
+        else
+          {
+            mcp = (import ../modules/dev/mcp/common.nix { inherit pkgs inputs; }).devShell;
+          };
+    };
 }

parts/packages.nix

@@ -52,12 +52,16 @@
       };
     in
     {
-      packages = (inputs.jawz-scripts.packages.${system} or { }) // {
+      packages =
-        emacs-vm = inputs.self.nixosConfigurations.emacs.config.system.build.vm;
+        (inputs.jawz-scripts.packages.${system} or { })
-        vps-linode = vpsLinodeConfig.config.system.build.images.linode;
+        // {
-        mcp-tests = mcpTests;
+          mcp-tests = mcpTests;
-        nixos-mcp = nixosMcp;
+          nixos-mcp = nixosMcp;
-        nixos-mcp-server = mcpServerPkg;
+          nixos-mcp-server = mcpServerPkg;
-      };
+        }
+        // pkgs.lib.optionalAttrs pkgs.stdenv.isLinux {
+          emacs-vm = inputs.self.nixosConfigurations.emacs.config.system.build.vm;
+          vps-linode = vpsLinodeConfig.config.system.build.images.linode;
+        };
     };
 }