Book: Hexagonal Architecture in Go Also by me: Pocket Guides for Developers — the 8-book series My project: Hermes IDE | GitHub — an IDE for developers who ship with Claude Code and other AI coding tools Me: xgabriel.com | GitHub You put a UserRepository interface between your domain and Postgres . The review comes back with one line: "Interfaces are slow in Go. Just pass the pool." That objection is half right, and the half that is right is not the...