Show HN: OpenGravity – A zero-install, BYOK vanilla JS clone of Antigravity

Hi. I’m a high school student studying for my GCSEs. I was using Google Antigravity heavily for my side projects, but I kept hitting the usage limits, and getting random "agent terminated" errors. So I decided to try build my own version of the IDE. I love the UI, so I copied it as accurately as possible, and then hooked up some logic into it, including the INCREDIBLY finicky webcontainer api.

I tried to keep it super lightweight, no build steps, or dependencies, and now that its open sourc