popmechanic/vibes.diy ? reverse-engineered prompt

Build me a simple web app where I can type an idea and have it turn into a small interactive app with AI.

I want it to feel easy and playful, like I can make mini apps in a few minutes with no setup. It should save everything automatically, let me come back to past creations later, and show updates in real time as I change things. I also want a sidebar or similar place where I can browse my previous apps and open them again. If possible, make it easy to share the finished app too.

Keep the interface clean and polished, with a few good example starter projects so people can see what’s possible right away. Please make it work as a single page app, and if you need current API or setup details, look them up online first.