Refactor

modules/common/plymouth.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  pkgs,
+  ...
+}: {
+  boot = {
+    plymouth.enable = true;
+    plymouth.theme = "spinner";
+    consoleLogLevel = 3;
+    initrd.verbose = false;
+
+    # Ajouts "quiet/splash" propres (sans auto-référence)
+    kernelParams = lib.mkAfter [
+      "mem_sleep_default=deep"
+      "quiet"
+      "splash"
+      "boot.shell_on_fail"
+      "udev.log_priority=3"
+      "rd.systemd.show_status=auto"
+    ];
+
+    loader = {
+      timeout = 5;
+      systemd-boot.enable = true;
+      systemd-boot.consoleMode = "max";
+      efi = {
+        canTouchEfiVariables = true;
+        efiSysMountPoint = "/boot";
+      };
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    nixos-bgrt-plymouth
+  ];
+}