Install the Kindle Unified App Launcher and a package installer (MRPI) Enable SSH on the Kindle using USBNet package. The kindle has several custom tools that enable the Kindle UI operations, like the custom UI framework called framework and it’s side-kick lab126_gui . try { const imageData = new Uint8Array(img); const decodedImage = decode(imageData); const { width, height, image: rawImage } = decodedImage; // grayscaleData stores image data, 1 channel per pixel const grayscaleData = new Uint8Array(width * height); // We need to convert the image now to grayscale for (let i = 0; i < rawImage.length; i += 4) { const r = rawImage[i]; const g = rawImage[i + 1]; const b = rawImage[i + 2]; // We need to use Luminosity method for grayscale conversion // This is a weighted average of the RGB…