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Architecture 15 Jan 2026

Lock the Customer, Half the Estate Notices

Locking a customer flips a flag in three of the four modules that hold one. Wallets has Lock and Unlock methods on its Owner entity and nothing in the estate ever calls them - so the module that moves money is the module that never hears.

.NET 05 Dec 2025

Five Seconds Is a Teaching Decision

The tick that makes eventual consistency watchable in a console, the four-hop chain that takes twenty seconds because of it, and the DI-scope trap the estate is one refactor away from firing.

Microservices 28 Sep 2025

Who Creates the Customer?

In DShop a customer is born in two steps - a record on sign-up, then a completed profile. Following both across the monolith and the swarm shows how a consistency model quietly rewrites a user flow.