Intro and Deep Dive teach the patterns through Northwind, a fictional example, with every pattern introduced by the real bug it prevents rather than a dictionary definition. Real Build drops the fiction — an actual ticket, an actual internal platform, built as one AI subagent per bounded context — and shows what drifted, how it was caught, and what it means for running DDD with agentic teams.
Opens with a real bug caused by two teams disagreeing on what "Product" means, then builds up: what a domain is, what DDD is, Ubiquitous Language, Bounded Contexts, Entities vs. Value Objects.
Open deck → 02Continues the same example into production patterns: Aggregates, Domain Events, Repositories, Context Mapping & the Anti-Corruption Layer — wired into one end-to-end flow, plus a codebase checklist.
Open deck → 03Drops the fiction for a real proposal — an editorial platform built for a news media house client — told in first person: the domain decisions, handing the build to one AI agent per bounded context, six real issues, and what I'd change next time.
Open deck →