move old nixos-config over here

common/plymouth.nix

@@ -0,0 +1,45 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  inherit (lib) mkIf mkEnableOption;
+  cfg = config.shelman.plymouth;
+in
+{
+  options.shelman.plymouth.enable = mkEnableOption "Fancy boot splash";
+
+  config = mkIf cfg.enable {
+    boot = {
+      consoleLogLevel = 0;
+      initrd.verbose = false;
+
+      # Hide the OS choice for bootloaders.
+      # It's still possible to open the bootloader list by pressing any key
+      # It will just not appear on screen unless a key is pressed
+      loader.timeout = 0;
+
+      kernelParams = [
+        "quiet"
+        "splash"
+        "boot.shell_on_fail"
+        "loglevel=3"
+        "rd.systemd.show_status=false"
+        "rd.udev.log_level=3"
+        "udev.log_priority=3"
+      ];
+
+      plymouth = {
+        enable = true;
+        theme = "spinner_alt";
+        themePackages = with pkgs; [
+          (adi1090x-plymouth-themes.override { selected_themes = [ "spinner_alt" ]; })
+        ];
+      };
+    };
+
+  };
+}