Book: Hexagonal Architecture in Go

Also by me: Thinking in Go (2-book series) — Complete Guide to Go Programming + Hexagonal Architecture in Go

My project: Hermes IDE | GitHub — an IDE for developers who ship with Claude Code and other AI coding tools

Me: xgabriel.com | GitHub

You inherit a Go monolith. One repo, forty handlers, one Postgres database, two integrations stitched into the HTTP layer. Someone proposes the rewrite. Three months of design docs, a freeze on new features, a parallel repo nobody uses in production. Six months in, the rewrite is shipped to staging and abandoned because the business needed a checkout fix and there was no team left to do it.

Martin Fowler called the alternative the Strangler Fig . The metaphor comes from a real plant: a fig seed sprouts in the canopy of a host tree, drops roots down the trunk, and over years grows into a hollow lattice. By the time the host tree dies, the fig is structurally complete.…