Jonah Cohen
Selected work
I build fast, well-structured software — from autonomy stacks and game engines to the systems behind an AI app builder.
Live
Bool
Credit metering, deploys, and reliability for an AI app builder.
- TypeScript
- Next.js
- Drizzle
- PostgreSQL
- Redis
- Bun
2026Read →
Live
Catcam
YOLO on an RTSP kitchen camera that only fires when the cat is on the counter.
- Python
- YOLO
- ONNX Runtime
- OpenCV
- RTSP
2026Read →
Live
2D Game Engine
A from-scratch C++ engine that resolves 100,000+ entities.
- C++
- SDL2
- Box2D
- Lua
- RapidJSON
2026Read →
In progress
Autonomous Surface Vessel Stack
Perception and telemetry for a competition autonomous boat.
- Python
- ROS2
- Docker
- Zenoh
- Protobuf
- Gazebo
2024Read →
Live
Photographer Website
Full-stack photo sharing with a hand-rolled OAuth flow.
- TypeScript
- React
- Next.js
- Tailwind CSS
- Firebase
2025Read →
In progress
ADS-B Telemetry Gateway
Live aircraft traffic from an antenna to a network topic, encrypted in hardware along the way.
- C
- C++20
- FreeRTOS
- STM32H7
- Nix
- SocketCAN
- Zenoh
- Protobuf
2026Read →