raginsky/veo-ui ? reverse-engineered prompt

Build me a local web app for generating videos with Google VEO 3.1, using my Gemini API key, with a clean simple interface I can run on my own machine.

I want to type a prompt, pick the model, choose aspect ratio, duration, and resolution, and optionally add a negative prompt. It should also let me upload up to 3 reference images for the generation. Please include a few helpful prompt templates with placeholder fields I can fill in, plus an option to improve the prompt with Gemini if I want that.

I’d also like presets for camera moves and visual styles, a gallery of past generations saved locally, and a way to compare two results side by side with synced playback and the JSON details for each run. Keep everything stored locally, including the MP4 files and history, and make it easy to start from app.py after installing the requirements.