About
Independent software, open-source tools, services, and computational research.

The founder
Zachary Roth
Raintree brings software services, independent products, and computational research together in one practice.
More about Zachary RothOverview
Services
Raintree builds websites, business systems, and controlled automation. Each project starts with one useful workflow, a reviewable scope, and clear ownership.
Review servicesSoftware
BetterOff is Raintree's private wealth workspace. The open-source portfolio includes tools for agent evidence, policy testing, interface review, and software quality.
Review softwareResearch
Current work uses Python, C, C++, Rust, TypeScript, Lean, shell, and Git. Computational research combines exhaustive search, exact arithmetic, and independent verification.
Review researchFrequently asked questions
What does Raintree Technology build?
Raintree Technology is Zachary Roth's independent software company and research practice. It builds focused software, publishes open-source tools, and documents computational work with reproducible evidence.
Which open-source projects can I use?
The current work includes PolicyStrata, DocPull, HIG Doctor, ToolFit, Trellis, and Raintree Standards. The project records state distribution and limitations.
What computational research does Raintree publish?
Raintree publishes work on Erdős problems, reliable AI systems, and software verification. Each result states its evidence, review status, and limitations.