#distributedsystems

A practical guide to duplicate execution, request fingerprints, concurrency, and safe retries. A...

From one owner to a replica set: synchronous replication in Squirix preview.8 The...

Abstract Financial infrastructure is usually described in terms of services, ledgers,...

In the previous part of this series, we built a Worker Pool from scratch. We saw how a coordinator...

Short answer: render synchronously when a small support document has a measured, low-variance latency...

"Why did we change the product terms on the website?" "They were changed by Agent #12 in tool call...

A handler that drops and reorders L2 updates under bursts is usually two separate failures behind one...

I used to type uuid.uuid4() for years without giving it a second thought. It works, it's unique, ship...

Say "add a CDN" in a system design interview and the next four questions decide whether you...

As our series continues, Deep-Dive Backend Systems Roadmap. I created the simplest weather API...

For most AI apps, the unit of time is a request. A user sends a message, the model responds, and the...

The Directory Problem: Why DNS Was Inevitable Software Laws from First Principles —...