Firmware Refactoring Sprint (Stability + Maintainability)

Description

This sprint is for embedded product teams and startups whose firmware works today—but is becoming fragile, hard to modify, or risky to extend.

If you’re experiencing:

• Fear of breaking things when adding features

• Tight coupling between drivers and application logic

• Poor build hygiene or brittle configuration

• Lack of clear module boundaries

This sprint stabilizes your firmware foundation.

What You Get

✔ Module boundaries & layered architecture
Clear separation between drivers, HAL, middleware, and application layers to reduce coupling.

✔ Refactor plan + implemented core improvements
A documented refactor strategy, plus actual refactoring applied to high-risk or high-value areas.

✔ Build system cleanup
Simplified and safer build configuration (CMake / Make / vendor tools) with reduced complexity.

✔ Documentation & code navigation guide
High-level architecture notes explaining where things live and why, so new engineers ramp faster.

✔ Regression checklist
Explicit list of behaviors and tests to validate stability after refactoring.

Scope 

• Firmware architecture review and refactor

• Driver isolation and dependency cleanup

• Core module restructuring

• Build system hygiene

• Stability-focused changes (not feature expansion)

Major feature development, hardware redesign, or full rewrites are out of scope and handled separately.

• Reduces long-term engineering risk

• Makes new features safer and faster to add

• Improves onboarding for new engineers

• Extends the life of your firmware investment

This sprint turns “working code” into “maintainable firmware.”