Towards a practical science of business systems

Two engineers.
One specification.
The same system.

Formal specifications for lending and collections systems: turning complex business rules into consistent, testable system behaviour.

Why you can check →

Free to read. No sign-in.

Community

Work and learn with a community of operators and builders.

  • Contribute: share patterns, incidents, and what you learned.
  • Review: sanity-check playbooks and frameworks with other operators.
  • Build: tools, prototypes, and workflows that make financial systems fairer and more reliable.
  • Discuss: join conversations on challenges you’re facing right now.