Remove obsolete audio and buzzer control documentation files, including detailed guides and HTML interfaces, to streamline the repository and eliminate redundancy. This cleanup enhances maintainability and focuses on essential resources for the reTerminal DM4 audio and buzzer functionalities.

emmc-provisioning/cloud-init/files-from-guard/plymouth-custom/custom.plymouth

@@ -0,0 +1,8 @@
+[Plymouth Theme]
+Name=Custom Splash
+Description=Custom boot splash screen
+ModuleName=script
+
+[script]
+ImageDir=/usr/share/plymouth/themes/custom
+ScriptFile=/usr/share/plymouth/themes/custom/custom.script

emmc-provisioning/cloud-init/files-from-guard/plymouth-custom/custom.script

@@ -0,0 +1,40 @@
+screen_width = Window.GetWidth();
+screen_height = Window.GetHeight();
+
+theme_image = Image("splash.png");
+image_width = theme_image.GetWidth();
+image_height = theme_image.GetHeight();
+
+scale_x = image_width / screen_width;
+scale_y = image_height / screen_height;
+
+if (scale_x > 1 || scale_y > 1)
+{
+    if (scale_x > scale_y)
+    {
+        resized_image = theme_image.Scale(screen_width, image_height / scale_x);
+        image_x = 0;
+        image_y = (screen_height - ((image_height * screen_width) / image_width)) / 2;
+    }
+    else
+    {
+        resized_image = theme_image.Scale(image_width / scale_y, screen_height);
+        image_x = (screen_width - ((image_width * screen_height) / image_height)) / 2;
+        image_y = 0;
+    }
+}
+else
+{
+    resized_image = theme_image.Scale(image_width, image_height);
+    image_x = (screen_width - image_width) / 2;
+    image_y = (screen_height - image_height) / 2;
+}
+
+if (Plymouth.GetMode() != "shutdown")
+{
+    sprite = Sprite(resized_image);
+    sprite.SetPosition(image_x, image_y, -100);
+}
+
+fun message_callback(text) {
+}