Ollie Fenwick is a frontend developer and writer who spent years shipping product UI before turning that into full-time reporting. He writes about JavaScript performance, framework trade-offs, and the tools teams actually keep after the demo. His pieces stay on the decision: what is fast enough, what is too clever, and what you should not rewrite.
Software Development
Web Development & Design
Lockfiles and Dependency Adds: When the Agent Installs a Package You Did Not Ask For
Ollie Fenwick
September 30, 2026
DevOps
Web Development & Design
Preview Deployments vs Deploying to Production From the Agent
Ollie Fenwick
September 30, 2026
Networking & Internet Infrastructure
Web Development & Design
When Does a CDN Actually Make a Website Faster?
Ollie Fenwick
September 27, 2026
Frontend
Software Development
A million lines of React is not a stack problem. It’s a boundaries problem — here’s the line I use
Ollie Fenwick
September 21, 2026
Frontend
Software Development
Atomic CSS and Tailwind: is this actually a scalable layout stack — or just a fast one?
Ollie Fenwick
September 18, 2026
Frontend
Software Development
State management in 2026: the trends I’d actually follow — and the stores I’d stop adding
Ollie Fenwick
September 18, 2026
Frontend
Software Development
The future of frontend in 2026: where I’d actually bet — and what’s already a dead end
Ollie Fenwick
September 18, 2026
Software Development
Web Development & Design
I stopped treating the API as the source of truth. Here’s when a sync engine is worth it
Ollie Fenwick
August 28, 2026
Software Development
Web Development & Design
The future of frontend apps: from fetch-and-hope to sync engines
Ollie Fenwick
August 28, 2026
Software Development
Web Development & Design
How to write JS that stays fast without turning every function into a micro-optimization
Ollie Fenwick
August 27, 2026
Software Development
Web Development & Design
Writing JavaScript that doesn’t stutter: the layout, list, and async mistakes that still jank in 2026
Ollie Fenwick
August 27, 2026
Software Development
Svelte 5 vs React 19 for Tiny Frontends: Where the Mental Model Tax Hits
Ollie Fenwick
April 8, 2026
Software Development
What WebAssembly Actually Means for Browser-Based Apps
Ollie Fenwick
March 7, 2026
Gadgets
Technology
iPad as Your Only Computer: Where It Works and Where It Doesn't
Ollie Fenwick
February 24, 2026
Software Development
Technology
The Case for Running Linux on Your Main Machine
Ollie Fenwick
February 24, 2026