diff --git a/flake.lock b/flake.lock
index 9c4899f..9e7c166 100644
--- a/flake.lock
+++ b/flake.lock
@@ -439,6 +439,21 @@
         "url": "https://github.com/NixOS/nixpkgs/archive/e9b51731911566bbf7e4895475a87fe06961de0b.tar.gz"
       }
     },
+    "nixpkgs-master": {
+      "locked": {
+        "lastModified": 1737648148,
+        "narHash": "sha256-bf5CeESGlyMRUgBzrEsTTWmPIqJPNO2ijww1BqQaajM=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "0705ac39224826af63d1e3a956e889f614a26352",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1730768919,
@@ -577,6 +592,7 @@
         "home-manager": "home-manager",
         "nix-darwin": "nix-darwin",
         "nixpkgs": "nixpkgs_3",
+        "nixpkgs-master": "nixpkgs-master",
         "nixvim": "nixvim",
         "pkgs-by-name-for-flake-parts": "pkgs-by-name-for-flake-parts",
         "snacks-nvim": "snacks-nvim",
diff --git a/flake.nix b/flake.nix
index 0454ead..3037d56 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,6 +32,8 @@
       url = "github:folke/snacks.nvim";
       flake = false;
     };
+
+    nixpkgs-master.url = "github:nixos/nixpkgs";
   };
 
   outputs =
diff --git a/overlays/nixpkgs-master.nix b/overlays/nixpkgs-master.nix
new file mode 100644
index 0000000..3f75e45
--- /dev/null
+++ b/overlays/nixpkgs-master.nix
@@ -0,0 +1,12 @@
+{ flake }:
+_final: super: {
+  inherit (flake.inputs.nixpkgs-master.legacyPackages.${super.stdenv.system})
+    luaPackages
+
+    lua51Packages
+    lua52Packages
+    lua53Packages
+    lua54Packages
+    luajitPackage
+    ;
+}