Show HN: KnowViz – Turn any concept into visuals (exploring "Nano Banana")
knowviz.appI’m a math grad student, not a professional developer. I was playing around with Google's newer models ("Nano Banana") and was struck by how their outputs could be structured for learning, not just for creating cool-looking demos. That was the "aha!" moment.
The developer experience was a huge leap for me. In the past, I've cobbled together projects with React + Python/FastAPI on a self-managed server, but this was my first time using Next.js and Vercel. The difference was night and day—it felt incredibly smooth and let me focus on the product itself.
A key insight during the build was realizing the generation had to be serial: text first (I'm using GPT-5 for concept explanation structure), then using that text as rich context for the visual model. It made the infographics much more relevant.
I'm genuinely here to learn from this community. Any and all feedback—brutal or otherwise—is welcome.