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
Sketch of architectural entanglement and shared system responsibilities

The Blueprint Behind the Bottleneck

Architecture isn’t just technical — it’s psychological, cultural, and historical. This piece explores how ideas like Conway’s Law, DDD, and platform thinking reshaped problem decomposition and organisational design.

May 19, 2025 · 11 min · Oliver Daff
Illustration of a tangled forest path with three signposts labelled State, Control, and Volume — and a narrow trail cutting through labelled Clarity

The Tar We Swim In: Rethinking Complexity After 'Out of the Tar Pit'

This post explores the deep impact of Moseley and Marks’ work on software architecture, drawing out its technical, historical, philosophical, and cultural significance.

May 13, 2025 · 9 min · Oliver Daff
Coloured pencil drawing of a frustrated developer sitting at the edge of a red-tape maze. Maze walls are labelled with 'Change Request', 'Security Review', 'Align with PM', and 'Platform Gate'. A sign reads 'SHIP HERE'.

Your Org Is Slowing You Down (and It’s Not the People)

Most teams don’t fail because the people are bad. They fail because the system they’re in makes doing the right thing harder than it should be. You’ve seen it before. Talented engineers grinding away, frustrated by endless blockers. Architecture that’s more cage than canvas. Leadership that says “go fast” but needs a meeting for every change. That’s not a team problem. That’s an org design problem. The API Memo That Changed the Internet In the early 2000s, Jeff Bezos sent a now-famous internal memo to every team at Amazon: ...

April 30, 2025 · 5 min · Oliver Daff