refactor: change to litterate config

Configuration is now held by the `.org` files. All `.nix` files are
tangled from the org-mode files.

modules/boot/plymouth.nix

@@ -1,35 +1,25 @@
 {
-  flake.modules.nixos.plymouth = {
-    pkgs,
-    lib,
-    config,
-    ...
-  }:
-    with lib; let
-      cfg = config.mySystem.boot.plymouth;
-    in {
-      options.mySystem.boot.plymouth.enable = mkEnableOption "Enables Plymouth at system boot";
-      config.boot = mkIf cfg.enable {
-        plymouth = {
-          inherit (cfg) enable;
-          theme = "circle_hud";
-          themePackages = with pkgs; [
-            (adi1090x-plymouth-themes.override {
-              selected_themes = ["circle_hud"];
-            })
-          ];
-        };
-        consoleLogLevel = 3;
-        initrd.verbose = false;
-        kernelParams = [
-          "quiet"
-          "splash"
-          "boot.shell_on_fail"
-          "udev.log_priority=3"
-          "rd.systemd.show_status=auto"
+  flake.modules.nixos.plymouth = {pkgs, ...}: {
+    boot = {
+      plymouth = {
+        enable = true;
+        theme = "circle_hud";
+        themePackages = with pkgs; [
+          (adi1090x-plymouth-themes.override {
+            selected_themes = ["circle_hud"];
+          })
         ];
-        # Loader appears only if a key is pressed
-        loader.timeout = 0;
       };
+      kernelParams = [
+        "quiet"
+        "splash"
+        "boot.shell_on_fail"
+        "udev.log_level=3"
+        "rd.systemd.show_status=auto"
+      ];
+      consoleLogLevel = 3;
+      initrd.verbose = false;
+      loader.timeout = 0;
     };
+  };
 }