We organized around nouns, not verbs. Users, lists, tasks, comments, each owned by exactly one service. Operations were almost entirely CRUD. Communication happ... (opens in new tab)

We organized around nouns, not verbs. Users, lists, tasks, comments, each owned by exactly one service. Operations were almost entirely CRUD. Communication happened through exactly two mechanisms: a standardized REST/JSON convention that every service spoke natively and exclusively, and a message bus that broadcast every mutation. That was it. No service-to-service RPC. No custom protocols. […]