I'm John Mandelli — João also works.
I build and explore systems at the intersection of technology, business, and human behavior. In practice that means AI products, developer workflows, and tools shaped as much by how people actually think and behave as by what the technology can do.
This site is a public workbench rather than a portfolio. Projects appear here while they are still in progress, notes are published while they are still being thought through, and the tools section contains things you can actually use.
What I work on
Right now: Fala Mandelli, a conversational AI built from curated expert knowledge; the Developer Control Panel, a unified surface for everyday development context; and experiments with physical productivity interfaces.