Writing

Notes from production

Occasional writeups of real problems I worked on — short, technical, no fluff.

7 min read•April 30, 2026

Wiring 40+ third-party scripts under OneTrust consent on a UK consumer site

How a UK consumer brand site keeps GTM, Contentsquare, Freespee, StoryStream, ad pixels and 40+ origins working in production — without breaking GDPR, CSP, or pageviews. A consent-callback registry pattern, a per-environment CSP middleware, and the trade-offs nobody writes about.

ArchitectureCSPOneTrust

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Mobile LCP: cutting hero image cost on a CMS-driven Next.js site

Performance

5 min read•February 15, 2026

Mobile LCP: cutting hero image cost on a CMS-driven Next.js site

A real production task: lowering Largest Contentful Paint on the landing pages of a high-traffic UK consumer site by tuning image fetch-priority, sizes, and CMS-side quality — without rewriting the renderer.

PerformanceCore Web VitalsNext.js

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