use Mitchell's Zig overlay

flake.lock

@@ -274,7 +274,8 @@
         "nixpkgs": "nixpkgs",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "nur": "nur",
-        "pre-commit-hooks": "pre-commit-hooks"
+        "pre-commit-hooks": "pre-commit-hooks",
+        "zig": "zig"
       }
     },
     "systems": {
@@ -306,6 +307,32 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "zig": {
+      "inputs": {
+        "flake-compat": [
+          "flake-compat"
+        ],
+        "flake-utils": [
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1732018331,
+        "narHash": "sha256-K9Ckfj8B/BYseN/FjdP0Q+fpuXEgl8cVov5t6+4D8bU=",
+        "owner": "mitchellh",
+        "repo": "zig-overlay",
+        "rev": "d667054598d541df2266b961b207bb63fe8fe423",
+        "type": "github"
+      },
+      "original": {
+        "owner": "mitchellh",
+        "repo": "zig-overlay",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -38,6 +38,15 @@
       };
     };
 
+    zig = {
+      url = "github:mitchellh/zig-overlay";
+      inputs = {
+        nixpkgs.follows = "nixpkgs";
+        flake-compat.follows = "flake-compat";
+        flake-utils.follows = "flake-utils";
+      };
+    };
+
     nix-index-database.url = "github:Mic92/nix-index-database";
     nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
 
@@ -74,6 +83,7 @@
       nix-index-database,
       pre-commit-hooks,
       nur,
+      zig,
       nixgl,
       ...
     }@inputs:
@@ -82,6 +92,7 @@
 
       overlays = [
         nur.overlay
+        zig.overlays.default
         nixgl.overlay
 
         (_self: super: { deploy-rs-pkg = super.deploy-rs; })

shared/home/default.nix

@@ -68,7 +68,8 @@ in
         pkgs-unstable.delve
         pkgs-unstable.go_1_23
         pkgs-unstable.go-tools
-        pkgs-unstable.zig_0_13
+
+        pkgs.zigpkgs."0.13.0"
       ])
 
       (lib.mkIf hmOnly [