Anyone else building real apps with Gemini’s AI app builder?

Hey folks 👋

I wanted to see if Gemini’s AI app builder could handle something real. I needed a fast way to generate estimates without paying for a clunky CRM, so I built a simple tool called QuiqEst. It takes natural language and spits out a clean, downloadable estimate or invoice.

It actually works — but what I’m more curious about is: has anyone else here built working tools with Gemini? Did you hit any limitations or cool breakthroughs?