Developer Guide

The Developer Guide is for maintainers, contributors, and deep integrators. It no longer answers “what is this project?” It answers “why is it implemented this way, how do I modify it safely, and where do I look when something goes wrong?”

Maintainer reading path

Goal	Recommended first stop	Then continue with
Understand system boundaries	Developer Architecture	Core Design
Set up or adjust local tooling	Build Guide	Testing
Explain performance numbers and evidence	Benchmark Guide	Performance
Prepare a contribution	Contributing	Resources

What this layer covers

• Explain module layering, the execution model, and key engineering trade-offs.
• Gather build, test, and benchmark maintenance constraints.
• Help contributors find the correct facts before changing code.

Relationship to other layers

If you have not yet built the user-facing workflow context, go back to the Guide. If you want external references, history, and evolution context, continue to the Research appendix.