In this codelab, we are going to build GlowUp, a photo restoration tool. GlowUp uses AI to restore old, damaged, or black-and-white photos, creating high-quality 4K color images. You can use this tool to give a new life to your family photos, or even adapt it to restore damaged illustrations, drawings, paintings or other forms of images.

You will use Genkit Go to implement the application logic and Gemini 3 Pro Image (also known as Nano Banana Pro) as the model to process the photos.

Previous knowledge of Go is not strictly required, but recommended.