First test of all machines

modules/boot/refind.nix

@@ -0,0 +1,24 @@
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkIf mkOption types;
+  cfg = config.horseman.boot.refind;
+in {
+  options = {
+    horseman.boot.refind = {
+      enable = mkEnableOption "Enables rEFInd, the boot manager";
+    };
+  };
+
+  config = {
+    environment.systemPackages = with pkgs; [
+      refind
+      efibootmgr
+    ];
+  };
+}