add boot module

modules/default.nix

@@ -3,6 +3,8 @@
     modules = with self.nixosModules; [
       user
       packages
+      agenix
+      boot
       /etc/nixos/hardware-configuration.nix
     ];
   };

modules/system/agenix/agenix.nix

@@ -1,5 +1,8 @@
-{ ... }: {
+{inputs, ... }: {
-  flake.nixosModules = {
+  flake.nixosModules.agenix = {config, ...}: {
+    imports = [
+      inputs.agenix.nixosModules.default
+    ];
     age = {
       enable = true;
       identityPaths = [ "/var/lib/misc/key.age" ];

modules/system/core/boot.nix

@@ -0,0 +1,22 @@
+{ ... }: {
+  flake.nixosModules.boot = {
+    options = {
+      dualBoot = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "wether to enable windows boot entry to limine or not";
+      };
+    };
+    boot.loader = {
+      efi.canTouchEfiVariables = true;
+      limine = {
+        enable = true;
+        extraEntries = lib.mkIf dualBoot ''
+          /Windows 11
+           protocol: efi_boot_entry
+           entry: Windows Boot Manager
+        '';
+      };
+    };
+  };
+}