diff --git a/flake.nix b/flake.nix
index 0a74596..23a0ce0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,6 +5,7 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-26.05";
     nixpkgs-unstable.url = "github:nixos/nixpkgs/nixpkgs-unstable"; # used for some packages
     nixos-grub-themes.url = "github:jeslie0/nixos-grub-themes";
+    nixpkgs-master.url = "github:nixos/nixpkgs/master"; # used with precaution as they are untested and not cached
 
     # This one is only used when testing some packaging. You must change the path to the correct nixpkgs clone
     #nixpkgs-local.url = "path:/home/tomasr/devel/fugit2-gpgme";
@@ -64,8 +65,9 @@
           pkgs-unstable = mkPkgs inputs.nixpkgs-unstable;
           pkgs-local = mkPkgs inputs.nixpkgs-unstable;
           #pkgs-local =  mkPkgs inputs.nixpkgs-local;
+          pkgs-master = mkPkgs inputs.nixpkgs-master;
         in {
-          inherit pkgs pkgs-unstable pkgs-local;
+          inherit pkgs pkgs-unstable pkgs-local pkgs-master;
         };
       }
       // (inputs.import-tree ./modules));
diff --git a/modules/hosts/desktop.nix b/modules/hosts/desktop.nix
index e973963..fe127bf 100644
--- a/modules/hosts/desktop.nix
+++ b/modules/hosts/desktop.nix
@@ -7,7 +7,7 @@
   flake.nixosConfigurations.desktop = inputs.nixpkgs.lib.nixosSystem {
     #system = "x86_64-linux";
     specialArgs = {
-      inherit (self) pkgs-unstable;
+      inherit (self) pkgs-unstable pkgs-master;
     };
     modules = with self.nixosModules; [
       # important do not remove
diff --git a/modules/hosts/laptop.nix b/modules/hosts/laptop.nix
index df4a91d..df6e5e4 100644
--- a/modules/hosts/laptop.nix
+++ b/modules/hosts/laptop.nix
@@ -6,7 +6,7 @@
   flake.nixosConfigurations.laptop = inputs.nixpkgs.lib.nixosSystem {
     #system = "x86_64-linux";
     specialArgs = {
-      inherit (self) pkgs-unstable pkgs-local;
+      inherit (self) pkgs-unstable pkgs-local pkgs-master;
     };
     modules = with self.nixosModules; [
       # important do not remove