Hello there!

We build developer tools and data infrastructure, and we take on contract work for companies with a hard technical problem. We have designed and built full-stack software for more than ten years with TypeScript, React, WebGL, and Cloudflare Workers.

What do you make?

Our largest project is Mailwoman, an open-source address parser and geocoder that runs inside your own process. It is published on npm, documented at mailwoman.ai, and used by teams that need addresses parsed and geocoded without sending them to a third-party API.

We also publish Asciify, which draws the bouncing ball in the next window, and ASCIIquarium, the terminal aquarium below it. The rest (Spliterator, path-ts, Keywork, and Sussudio) are pinned to this desktop as notes; the full list is on the projects page.

Do you take on client work?

Yes. We are available for contract engagements and one-off projects such as a proof-of-concept, a custom component library, or a technical feasibility study. Full-time arrangements are possible when the project is a good fit and our schedule allows.

We are most interested in greenfield projects with a challenging technical focus: an MVP that has to work the first time, a feature the existing team has been unable to ship, or a tool that makes a complex task usable by people who are not programmers.

Who have you worked with?

We have worked closely with Cloudflare, Google, and Microsoft, as well as smaller startups, non-profits, and independent clients. We contributed to Coder’s code-server and to Cloudflare Apps. References are available on request.

What tools do you use?

• Languages and runtimes: TypeScript, Node.js, Python, WebAssembly
• Front-end: React, Three.js and WebGL, Docusaurus
• Data and models: SQLite, PostgreSQL, ONNX Runtime, PyTorch
• Infrastructure: Cloudflare Workers and R2, AWS, Modal

How can I get in touch?

Email [email protected]. Talks and writing live on the blog, and everything on this desktop comes from our design system.