Journal — Engineering

Engineering

Performance budgets, rendering trade-offs and the boring, load-bearing code that lets everything else be interesting.

Engineering · 7 Aug 2025 · 10 min

Core Web Vitals in the field: budgets that survive sprints

A practical Core Web Vitals program: LCP element archaeology, INP triage, CI-enforced budgets, and real-user monitoring on a shoestring. Recipes that work.

performancecore web vitalsCI budgets
Engineering · 20 June 2025 · 9 min

The caching layers cake: HTTP, ISR and the discipline of invalidation

A layered caching model for content-heavy sites — CDN, full-page, data and application caches — plus the purge-on-publish pattern that ends 3am incidents.

cachingperformancearchitecture
Engineering · 20 June 2025 · 11 min

i18n beyond the strings file

The hard 20% of internationalisation: plural rules, dates and currency, RTL layout, locale-aware content modelling, and design tokens that change per language.

i18nlocalisationrtl
Engineering · 20 June 2025 · 10 min

Local-first on the web: sync engines, honestly

What local-first architecture actually costs and buys: IndexedDB patterns, CRDT trade-offs, schema migrations, sync-status UX, and when server-first is simply right.

architectureofflinesync
Engineering · 19 June 2025 · 9 min

Islands architecture: sprinkle, don't soak

When islands beat a full SPA: hydration costs, interaction latency budgets, the pragmatic hybrid pattern we use on content-heavy sites, and the traps.

architectureperformancehydration
Engineering · 19 June 2025 · 11 min

A testing strategy that ships: what to test, what to skip, what to delete

Our testing pyramid, rebuilt for reality: contract-first unit tests, a thin layer of Playwright journeys, flake budgets, and a CI bill we defend monthly.

testingplaywrightvitest
Engineering · 15 Apr 2025 · 11 min

Generating PDFs from web tech without tears

Invoices, statements and reports generated from web tech: print CSS vs headless Chrome vs canvas composition, scored honestly — plus when PDF is the wrong answer.

pdfprint CSSheadless chrome
Engineering · 14 Mar 2025 · 9 min

Edge rendering: an honest guide for content sites

What edge rendering actually buys a content site, what it quietly costs, and the decision framework we run before moving a single route to the edge.

performancearchitectureinfrastructure
Engineering · 13 Mar 2025 · 10 min

React Server Components: the trade-offs nobody puts in the talk

A sober field account of React Server Components: where they genuinely help, where the mental-model and caching costs bite, and how we decide per project.

reactarchitectureserver components
Engineering · 27 Feb 2025 · 10 min

Engineering keyboard-first interfaces

Roving tabindex, focus management without traps, shortcut systems users can actually discover, and the test setup that treats the keyboard as a primary input.

accessibilitykeyboard navigationfocus management
Engineering · 12 Nov 2024 · 10 min

Feature flags without the graveyard

Flag discipline for product squads: lifecycle stages, a naming grammar, expiry automation, analytics hooks, and the monthly flag funeral that keeps codebases young.

feature flagsprogressive rollouttechnical debt