another one

system/boot/default.nix

@@ -0,0 +1,6 @@
+{
+  boot.loader = {
+    systemd-boot.enable = true;
+    efi.canTouchEfiVariables = true;
+  };
+}

system/boot/lanzaboote/default.nix

@@ -0,0 +1,24 @@
+{
+  pkgs,
+  lib,
+  inputs,
+  ...
+}:
+# lanzaboote config
+{
+  imports = [
+    inputs.lanzaboote.nixosModules.lanzaboote
+  ];
+
+  boot = {
+    lanzaboote = {
+      enable = true;
+      pkiBundle = "/etc/secureboot";
+    };
+
+    # we let lanzaboote install systemd-boot
+    loader.systemd-boot.enable = lib.mkForce false;
+  };
+
+  environment.systemPackages = [pkgs.sbctl];
+}