Robert Kaltenbach

Happy Lo-Fi Holidays is a holiday-themed React web experience inspired by classic “lo-fi beats” videos and reimagined as an interactive, customizable scene.

Choose from cozy interior spaces, different exteriors, layer dynamic weather effects, and optionally mirror real-world...

AI-assisted development isn’t just about writing code faster, it’s about recognizing repetitive friction and spinning up the right tooling so you don’t lose momentum. 🚀

Really happy to have found contra (and all of you!) in 2025. Here's to many more.

Presenting iris- a mobile/tablet-first AI point-of-sale system built with Expo, React Native, Supabase, Roboflow, and OpenAI. It uses the device camera for real-time object detection and LLM-powered naming, letting stores build tickets or receive shipments automatically. No...