Repository evidence · Architecture · Onboarding

Legacy System Documentation Rescue

Turn an undocumented system into an understandable knowledge base.

Reconstruct how an existing system works and turn repository evidence, architecture, components, APIs, data flows, risks, and operational knowledge into maintainable documentation.

Ready to start?

Use the temporary Gumroad storefront while product-specific listings are being prepared.

Get this on Gumroad

Product-specific checkout is coming soon.

What you can accomplish

A clear path to a useful result.

Inspect an unfamiliar repository
Reconstruct architecture, components, and dependencies
Document APIs and critical data flows
Create an onboarding guide and documentation backlog

Choose your depth

Start complete. Expand when the work demands it.

Base · Complete start

The core journey

The complete documentation-rescue journey for understanding the system and creating a practical onboarding foundation.

Repository inspection
Architecture and dependency map
API and data-flow documentation
Risk, completeness, and handover checks

Premium · Advanced capability

More control for complex work

Automation, governance, and deeper architectural analysis for documentation that must survive change.

Automated inventories and AI-agent orchestration
Advanced diagrams and modernization analysis
Change-impact and multi-repository evidence
Continuous documentation governance

Expected result

Finish with evidence you can use.

System overview
Architecture map
Component inventory
Onboarding guide
Maintainable documentation base

“You cannot safely evolve a system that nobody can clearly explain.”