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Repository Structure

The repository structure should reflect the architecture of the PrintPrice platform.

A clear structure improves discoverability, onboarding, maintenance, and operational reliability.

Objectives​

A good repository structure should make it easier to understand:

  • where core engines live
  • where API surfaces are defined
  • where shared contracts exist
  • where infrastructure concerns are handled
  • where documentation belongs

Common Structural Domains​

A PrintPrice codebase may include domains such as:

  • application entry points
  • engine modules
  • API routes
  • shared schemas
  • services
  • workers
  • infrastructure configuration
  • documentation
  • tests

These domains should remain easy to identify.

Separation by Responsibility​

Repository structure should reinforce responsibility boundaries.

For example:

  • pricing logic should not be mixed with UI concerns
  • preflight processing should not be buried inside unrelated code
  • integration adapters should remain distinct from core decision logic

This reduces accidental coupling.

Shared Contracts​

Where multiple engines communicate, shared contracts should have a clearly defined location.

Examples include:

  • request schemas
  • response schemas
  • normalized specification models
  • compatibility result structures

This improves consistency across services.

Documentation Placement​

Important repository-level documentation may include:

  • architecture notes
  • deployment guidance
  • operational runbooks
  • environment setup
  • engineering conventions

These documents should be easy to find and keep aligned with implementation.

Test Organization​

Tests should be structured in a way that mirrors the system design where practical.

Clear test organization helps identify coverage gaps and supports confident refactoring.

Growth Readiness​

As the platform expands, repository structure should remain scalable.

That may involve:

  • clearer package boundaries
  • separate apps and workers
  • modular engine folders
  • dedicated integration layers
  • explicit shared libraries

Long-Term Goal​

The goal is not complexity for its own sake.

The goal is to make the repository understandable enough that engineers can safely evolve a production-critical platform over time.