Show HN: Nano Banana 2 Playground – text-to-image and image-to-image demo

Hi HN — I’m an indie developer. I built Nano Banana 2 Playground, a simple web demo for generating images from text and transforming existing images (image-to-image).

My goal was a fast, minimal UI that lets you iterate on prompts quickly and compare results without extra friction.

I’d love feedback on:

Prompt UX (what feels missing/confusing)

Which controls/presets are actually useful

How to communicate limitations and expected results clearly

Thanks for taking a look — happy to answer questions and improve it based on your suggestions.