Coloured-pencil sketch of a loosely coupled system with message arrows between independent boxes

Reactive, Not Just Responsive: How a Manifesto Rewired Our Thinking About Systems

More than a design guide, the Reactive Manifesto triggered a shift in how developers approach time, failure, control, and team dynamics. This post traces its deeper impact — across technical, philosophical, psychological, and cultural lines.

June 2, 2025 · 10 min · Oliver Daff
The Invisible Ceilings of Cloud Infrastructure

The Invisible Ceilings of Cloud Infrastructure

The Invisible Ceilings of Cloud Infrastructure What Pinterest’s EC2 throttling incident—and others like it—teach us about building resilient systems in a black box world. When the Cloud Slows Down, Quietly It started with user complaints. Pages were loading slowly. API calls were timing out. Internal dashboards lagged behind real-time. Something was wrong—but none of the usual suspects showed up. No alerts fired. No dashboards lit up. Logs were clean. And yet the system was clearly sick. ...

April 8, 2025 · 7 min · Oliver Daff