Untangling the spaghetti: How we decoupled our legacy codebase

How we decoupled TechWolf’s legacy codebase

At TechWolf, we recently took on a critical engineering milestone: untangling and decoupling our monolithic legacy codebase. What started as a tightly woven backend had become a barrier to scale, testing, and independent development. Over time, growing feature needs and tight timelines had led to what we affectionately called "spaghetti code."

This post shares how we:

• Mapped dependencies and domain boundaries
• Used event-driven architecture to break tight coupling
• Introduced modular services without pausing feature delivery
• Made cultural shifts to support better ownership and velocity

We also share real-world lessons from balancing technical debt, migration risk, and momentum: the kind of hard-won insight only a live product can teach.