Change in folders organisation

modules/system/options/nixos/boot/plymouth.nix

@@ -0,0 +1,23 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.os.boot.plymouth;
+in
+{
+  options.os.boot.plymouth = {
+    enable = mkEnableOption "Boot plymouth service";
+  };
+  config = mkIf cfg.enable {
+
+    boot.consoleLogLevel = 3;
+    boot.initrd.verbose = false;
+    boot.kernelParams = [
+      "quiet"
+      "splash"
+      "boot.shell_on_fail"
+    ];
+
+    boot.plymouth.enable = true;
+
+  };
+}

modules/system/options/nixos/boot/systemd-boot.nix

@@ -0,0 +1,17 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.os.boot.systemd;
+in
+{
+  options.os.boot.systemd = {
+    enable = mkEnableOption "Boot systemd service";
+  };
+  config = mkIf cfg.enable {
+
+    boot.loader.systemd-boot.enable = true;
+    boot.loader.efi.canTouchEfiVariables = true;
+    boot.loader.systemd-boot.consoleMode = "max";
+
+  };
+}