diff --git a/flake.lock b/flake.lock
index 08a3ca2..0ec1b17 100644
--- a/flake.lock
+++ b/flake.lock
@@ -694,6 +694,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-master": {
+      "locked": {
+        "lastModified": 1747577170,
+        "narHash": "sha256-EG2R3RPpv3O5ggY+KPPOD6vB+x6+gpNHLXP5I2ELVqo=",
+        "owner": "NixOs",
+        "repo": "nixpkgs",
+        "rev": "4b7dfb442ffb06508dc47c7668184f96444b0fa3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOs",
+        "ref": "master",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-regression": {
       "locked": {
         "lastModified": 1643052045,
@@ -894,6 +910,7 @@
         "determinate": "determinate",
         "home-manager": "home-manager",
         "nixpkgs": "nixpkgs_4",
+        "nixpkgs-master": "nixpkgs-master",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "nixvim": "nixvim",
         "pre-commit-hooks": "pre-commit-hooks",
diff --git a/flake.nix b/flake.nix
index 6e2248a..3955775 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,6 +4,7 @@
   inputs = {
     determinate.url = "https://flakehub.com/f/DeterminateSystems/determinate/*";
     nixpkgs-unstable.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1";
+    nixpkgs-master.url = "github:NixOs/nixpkgs/master";
     nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/*";
     pre-commit-hooks.url = "github:cachix/git-hooks.nix";
     darwin = {
@@ -27,6 +28,7 @@
       home-manager,
       nixpkgs,
       nixpkgs-unstable,
+      nixpkgs-master,
       stylix,
       vpngate,
       ...
@@ -62,11 +64,16 @@
             system = "x86_64-linux";
             config.allowUnfree = true;
           };
+          master = import nixpkgs-master {
+            system = "x86_64-linux";
+            config.allowUnfree = true;
+          };
         in
         {
           hephaestus = nixpkgs.lib.nixosSystem {
             specialArgs = {
               inherit unstable;
+              inherit master;
               inherit vpngate;
             };
             modules = [
@@ -113,6 +120,7 @@
                       ];
                       extraSpecialArgs = {
                         inherit unstable;
+                        inherit master;
                       };
                     };
                   };
@@ -129,12 +137,17 @@
             config.allowUnfree = true;
             inherit system;
           };
+          master = import nixpkgs-master {
+            config.allowUnfree = true;
+            inherit system;
+          };
         in
         {
           zelus = darwin.lib.darwinSystem {
             inherit system;
             specialArgs = {
               inherit unstable;
+              inherit master;
             };
 
             modules = [
@@ -158,6 +171,7 @@
                       ];
                       extraSpecialArgs = {
                         inherit unstable;
+                        inherit master;
                       };
                     };
                   };
diff --git a/hosts/hephaestus.nix b/hosts/hephaestus.nix
index 058d6c2..f37db7f 100644
--- a/hosts/hephaestus.nix
+++ b/hosts/hephaestus.nix
@@ -1,6 +1,7 @@
 {
   config,
   lib,
+  master,
   modulesPath,
   pkgs,
   unstable,
@@ -322,7 +323,7 @@ in
   };
 
   services.ollama = {
-    package = unstable.ollama;
+    package = master.ollama;
     enable = true;
     acceleration = "rocm";
     host = "0.0.0.0";