Shaun Laurens

The log

Every entry, newest first. One a week on systems, AI and the work of building software.

2026

  1. 009 · 2026-11-04What Is a Context Layer?An agent answering a business question needs definitions, current data, permissions, and ways to act. A context layer brings those together for the task at hand.AI & engineering · 10 min
  2. 008 · 2026-10-28Building Confidence in Systems Written with AIHow we use formal verification, simulation, fuzzing, and performance tests to build evidence that our Rust services behave as intended.AI & engineering · 14 min

2025

  1. 007 · 2025-12-23The Option Surface Has ChangedAI reveals action paths that were always technically possible — but practically invisible.AI & engineering · 5 min
  2. 006 · 2025-12-17The Anti-AI Movement and the Myth of CraftsmanshipWhy Kitchen Purgatory is the real threat to software engineering, not the machines.AI & engineering · 3 min

2024

  1. 005 · 2024-10-31Sharing State in a Sequencer EnvironmentDiscussion on how to share state safely in a sequencer environment.Replication · 5 min
  2. 004 · 2024-02-04Read Heavy Aeron Cluster WorkloadsInvestigating the read consistency models supported by Aeron Cluster.Trading systems · 5 min
  3. 003 · 2024-01-28Increasing Replicated State Machine Throughput in Trading SystemsLooking at ways to increase the throughput of replicated state machines in trading systems.Trading systems · 11 min

2023

  1. 002 · 2023-12-31Can We Reduce Coordination in Cloud Trading Venues?Trying and failing to reduce the coordination overhead in cloud trading venues.Trading systems · 9 min

2020

  1. 001 · 2020-12-12State Machine Replication: A Brief HistoryA brief history of state machine replication.Replication · 4 min

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