[feat] Add darwin configs as well

config/nix/flake.lock

@@ -1,5 +1,25 @@
 {
   "nodes": {
+    "darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1707707289,
+        "narHash": "sha256-YuDt/eSTXMEHv8jS8BEZJgqCcG8Tr3cyqaZjJFXZHsw=",
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "rev": "44f50a5ecaab72a61d5fd8e5c5717bc4bf9c25dd",
+        "type": "github"
+      },
+      "original": {
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -198,6 +218,7 @@
     },
     "root": {
       "inputs": {
+        "darwin": "darwin",
         "home-manager": "home-manager",
         "neovim-nightly-overlay": "neovim-nightly-overlay",
         "nixpkgs": "nixpkgs_2"