run gradient cache

flake.nix

@@ -6,9 +6,11 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
     authentik = {
       url = "github:nix-community/authentik-nix";
+      inputs.nixpkgs.follows = "nixpkgs";
     };
     mailserver = {
       url = "git+https://gitlab.com/simple-nixos-mailserver/nixos-mailserver?ref=nixos-25.11";
+      inputs.nixpkgs.follows = "nixpkgs";
     };
     sops = {
       url = "github:Mic92/sops-nix";
@@ -18,6 +20,9 @@
       url = "github:nix-community/disko";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    gradient = {
+      url = "github:wavelens/gradient";
+    };
   };
 
   outputs =
@@ -28,6 +33,7 @@
       mailserver,
       disko,
       sops,
+      gradient
     }:
     let
       sshkeys = [
@@ -44,15 +50,6 @@
           pkgs = nixpkgs.legacyPackages.x86_64-linux;
         in
         pkgs.mkShell {
-          # Import GPG keys from keys directory
-          sopsPGPKeyDirs = [
-            "${toString ./.}/keys/hosts"
-            "${toString ./.}/keys/users"
-          ];
-
-          # Isolate sops GPG keys to .git/gnupg (optional)
-          # sopsCreateGPGHome = true;
-
           nativeBuildInputs = [
             sops.packages.x86_64-linux.sops-import-keys-hook
           ];
@@ -197,6 +194,8 @@
                 disko.nixosModules.disko
                 authentik.nixosModules.default
                 mailserver.nixosModules.mailserver
+                gradient.nixosModules.default
+                sops.nixosModules.sops
                 {
                   _module.args = { inherit self modulesPath; };
                 }