Double Star

Small Seattle research studio building deterministic AI systems, experimental software, and engineering workflows.

Explore the Lab Read RE4 Book Consulting

Projects

Deterministic Machine Learning

Libraries for reproducible integer-based machine learning and neural networks.

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Local AI Experiments

Interactive systems that run locally on your machine.

Demo

Digital Organisms

Experiments in artificial life, simulation, and strange little creatures.

Meet Feryl

RE4

The Re-Portable Engineering Workflow

RE4 is both a published method and a working system — giving complex AI-assisted projects a durable structure so humans and AI can coordinate clearly over time. The book teaches the method. The system installs into your repository, ready to run. Most frameworks describe a way of working. RE4 installs one.

Now available on Kindle.

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Consulting

Need help organizing your engineering work?

We help teams adopt RE4 and design practical AI-assisted engineering workflows.

Architecture review
RE4 workflow setup
Debugging AI collaboration problems
Project structure and documentation design

Book Consulting

About

Two people making useful and unusual things.

Double Star is a small independent studio building tools, experiments, and workflows. We care about deterministic systems, local AI, and software that stays understandable.

About Double Star