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"Pages Router to App Router Migration Risk Checklist", "url": "https://johnkavanagh.co.uk/articles/nextjs-app-router-migration-risk-checklist/", "published_at": "2026-05-08T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b140933822df", "title": "What AEO is, and How It Fits with SEO and GEO", "url": "https://johnkavanagh.co.uk/articles/what-aeo-is-and-how-it-fits-with-seo-and-geo/", "published_at": "2026-05-07T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14093a34d8b", "title": "Core Web Vitals Got Worse After a Redesign", "url": "https://johnkavanagh.co.uk/articles/core-web-vitals-regression-after-redesign/", "published_at": "2026-05-04T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14093b1b2b2", "title": "Solving the LeetCode N‑Queens Problem", "url": "https://johnkavanagh.co.uk/articles/solving-the-n-queens-problem/", "published_at": "2026-05-03T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14094300880", "title": "The AI Layoff Trap: When Local Efficiency Becomes Systemic Fragility", "url": "https://johnkavanagh.co.uk/articles/the-ai-layoff-trap-local-efficiency-to-systemic-fragility/", "published_at": "2026-04-30T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14094619ef6", "title": "When Production Data Breaks a Next.js Site", "url": "https://johnkavanagh.co.uk/articles/production-data-makes-nextjs-fail/", "published_at": "2026-04-29T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14094a480e3", "title": "How to Vet a Senior Next.js Developer for a Replatform or Recovery Project", "url": "https://johnkavanagh.co.uk/articles/vet-senior-nextjs-developer-replatform-recovery/", "published_at": "2026-04-28T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409535f8f4", "title": "Using Angular Signals for Performance Optimisation", "url": "https://johnkavanagh.co.uk/articles/using-angular-signals-for-performance-optimisation/", "published_at": "2026-04-27T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14095799d1f", "title": "Responsible AI Needs an Owner", "url": "https://johnkavanagh.co.uk/articles/responsible-ai-needs-an-owner/", "published_at": "2026-04-23T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b140961f1fe7", "title": "NextAuth Works Locally but Fails in Production", "url": "https://johnkavanagh.co.uk/articles/nextauth-production-debugging-vercel/", "published_at": "2026-04-21T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14096400735", "title": "LeetCode: The 'Kth Smallest Element in a BST' Problem", "url": "https://johnkavanagh.co.uk/articles/leetcode-the-kth-smallest-element-in-a-bst-problem/", "published_at": "2026-04-20T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b140971be682", "title": "Using RxJS for State Management in Angular", "url": "https://johnkavanagh.co.uk/articles/using-rxjs-for-state-management-in-angular/", "published_at": "2026-04-17T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b140979916d8", "title": "Why Next.js Builds Time Out on Vercel", "url": "https://johnkavanagh.co.uk/articles/why-nextjs-builds-time-out-on-vercel/", "published_at": "2026-04-15T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14098845221", "title": "React Developer vs. Next.js Developer: What Actually Changes in Production", "url": "https://johnkavanagh.co.uk/articles/react-developer-vs-nextjs-developer-production/", "published_at": "2026-04-14T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14098ec6860", "title": "Backtracking Decision Trees: Solving 'Combination Sum'", "url": "https://johnkavanagh.co.uk/articles/backtracking-decision-trees-solving-combination-sum/", "published_at": "2026-04-13T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409933d549", "title": "GEO vs. SEO: Where They Overlap, and Where They Don't", "url": "https://johnkavanagh.co.uk/articles/geo-vs-seo-where-they-overlap-and-where-they-dont/", "published_at": "2026-04-09T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14099490085", "title": "Next.js Site Broke After Deploy: A Production Triage Checklist", "url": "https://johnkavanagh.co.uk/articles/nextjs-site-broke-after-deploy-production-triage/", "published_at": "2026-04-07T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b140999bd707", "title": "Solving the 'Jump Game' Problem with Greedy Algorithms", "url": "https://johnkavanagh.co.uk/articles/solving-the-jump-game-problem-with-greedy-algorithms/", "published_at": "2026-04-06T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b14099cfeaeb", "title": "Memoisation in JavaScript: Optimising Function Calls", "url": "https://johnkavanagh.co.uk/articles/memoization-in-javascript-optimising-function-calls/", "published_at": "2026-04-03T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409ab7e6c4", "title": "Next.js Proxy Replaces Middleware: What Changes in Practice", "url": "https://johnkavanagh.co.uk/articles/next-js-proxy-replaces-middleware/", "published_at": "2026-04-02T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409b5ceeb5", "title": "CMS Content Not Updating in Next.js", "url": "https://johnkavanagh.co.uk/articles/content-not-updating-from-cms-debugging-runbook/", "published_at": "2026-03-31T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409b862fa2", "title": "Dynamic Programming in LeetCode: Solving 'Coin Change'", "url": "https://johnkavanagh.co.uk/articles/dynamic-programming-in-leetcode-solving-coin-change/", "published_at": "2026-03-30T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409c285ed6", "title": "Handling API Routes in Next.js: When to Use Server Actions vs. API Routes", "url": "https://johnkavanagh.co.uk/articles/when-to-use-server-actions-vs-api-routes-in-nextjs/", "published_at": "2026-03-27T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409d0e5b71", "title": "LeetCode: Finding the Diameter of a Binary Tree", "url": "https://johnkavanagh.co.uk/articles/leetcode-finding-the-diameter-of-a-binary-tree/", "published_at": "2026-03-25T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409d4c7691", "title": "Headless CMS SEO Controls Checklist", "url": "https://johnkavanagh.co.uk/articles/headless-cms-seo-controls-checklist/", "published_at": "2026-03-24T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409e3df803", "title": "Topological Sort: Solving the 'Course Schedule' Problem", "url": "https://johnkavanagh.co.uk/articles/topological-sort-solving-the-course-schedule-problem/", "published_at": "2026-03-23T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409edb7548", "title": "Enterprise AI Delivery Starts After the Pilot", "url": "https://johnkavanagh.co.uk/articles/enterprise-ai-delivery-after-the-pilot/", "published_at": "2026-03-19T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409f05bd3e", "title": "Technical SEO Launch Criteria for a Next.js Migration", "url": "https://johnkavanagh.co.uk/articles/technical-seo-launch-criteria-nextjs-migration/", "published_at": "2026-03-17T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409fd55cd6", "title": "What GEO is, and Why It is Not Just SEO for AI", "url": "https://johnkavanagh.co.uk/articles/what-geo-is-and-why-it-is-not-just-seo-for-ai/", "published_at": "2026-03-16T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b1409ffd0c31", "title": "Understanding the Module Pattern in JavaScript", "url": "https://johnkavanagh.co.uk/articles/understanding-the-module-pattern-in-javascript/", "published_at": "2026-03-11T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b140a0ab8454", "title": "How to Compare Rendered HTML Before and After a Migration", "url": "https://johnkavanagh.co.uk/articles/rendered-html-comparison-migration-audit/", "published_at": "2026-03-10T00:00:00+00:00" }, { "id": "01a0878f-6676-72b9-a6fb-b140a1a8b3ff", "title": "Multi‑Source BFS: Solving the 'Rotting Oranges' Problem", "url": "https://johnkavanagh.co.uk/articles/multi-source-bfs-solving-the-rotting-oranges-problem/", "published_at": "2026-03-09T00:00:00+00:00" } ] posts Claim your blog

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2026

Retention Theatre: Why Companies Lose Good Engineers Whilst Pretending to Listen original ↗

24 Sept 2026

Why Transformation Programmes Fail After the Slide Deck original ↗

20 Sept 2026

Technical AEO: Structuring Content for Direct Answers Without Creating FAQ Spam original ↗

18 Sept 2026

Building an LRU Cache in TypeScript: Hash Map and Doubly Linked List in Practice original ↗

16 Sept 2026

How to Make Content Easier for Generative Engines to Trust original ↗

12 Sept 2026

The Consultancy Rescue Loop original ↗

8 Sept 2026

The Deadline Debt Nobody Tracks original ↗

4 Sept 2026

When Sass Colours Break After a Next.js Production Build original ↗

3 Sept 2026

Mastering Server Components in Next.js original ↗

31 Aug 2026

The Engineering Capability Trap original ↗

27 Aug 2026

HTTP 402 finally Found a Purpose original ↗

26 Aug 2026

LeetCode: 'Maximum Subarray' and Kadane's Algorithm Explained original ↗

23 Aug 2026

The Seniority Trap: Hiring Experience Without Giving Authority original ↗

19 Aug 2026

The Talent Bar Paradox in Engineering Hiring original ↗

15 Aug 2026

The Web is Becoming Machine‑Readable First original ↗

12 Aug 2026

Converting Objects to Query Strings and Vice Versa original ↗

11 Aug 2026

The False Economy of Cheap Engineering original ↗

7 Aug 2026

HTTP Cache Validation with ETag and Last-Modified original ↗

5 Aug 2026

Best Practices for Managing Environment Variables in Next.js original ↗

3 Aug 2026

Production Observability for Next.js: Instrumentation, Logs, and Release Debugging original ↗

1 Aug 2026

The False Economy of Cutting QA in the AI Delivery Era original ↗

30 Jul 2026

Everyone Wants the Best Engineers. Fewer Companies Want to Pay for Them.original ↗

26 Jul 2026

Your Website Has a New Customer: The AI Agent original ↗

24 Jul 2026

AI Slop is a Symptom, Not the Disease original ↗

22 Jul 2026

Faceted Navigation SEO in Headless Commerce: Filters, Canonicals, and Crawl Control original ↗

20 Jul 2026

The Platform Dependency Trap: When Efficiency Becomes Lock‑in original ↗

18 Jul 2026

Right to Represent Agreements for UK Contractors original ↗

16 Jul 2026

Error Handling in JavaScript with try, catch, and finally original ↗

14 Jul 2026

Gatsby Build Times are Slow: Fix or Migrate?original ↗

13 Jul 2026

When AI Search Creates Visibility Without a Visit original ↗

12 Jul 2026

The AI Governance Gap in Digital Transformation original ↗

10 Jul 2026

GTM, Consent Tools, and Core Web Vitals: How to Audit Third‑Party Script Cost original ↗

8 Jul 2026

Why AI Makes Senior Engineers More Important, Not Less original ↗

6 Jul 2026

Gatsby to Next.js Migration Checklist original ↗

3 Jul 2026

The Automation Tax No One Measures original ↗

2 Jul 2026

Contentful to Sanity Migration Checklist for Next.js Sites original ↗

29 Jun 2026

SEO Best Practices in Next.js: Improving Core Web Vitals original ↗

28 Jun 2026

Google's Search Monopoly Was Built on a Deal. AI is Rewriting It.original ↗

27 Jun 2026

Why Your Next.js App Router Page is Stale: Cache Tags, Revalidation, and CMS Publishing original ↗

26 Jun 2026

Contentful to Sanity Migration Risks for Next.js Sites original ↗

25 Jun 2026

AI and the Collapse of Organisational Memory original ↗

24 Jun 2026

CMS Preview Should Be a Migration Requirement, Not an Afterthought original ↗

22 Jun 2026

The Hidden Cost of Replacing Juniors with AI original ↗

20 Jun 2026

The Web Just Invented a Toll Booth for AI original ↗

19 Jun 2026

Should You Move from Contentful to Sanity?original ↗

18 Jun 2026

AGI vs. AI vs. ASI: What Actually Changes?original ↗

17 Jun 2026

A Deep Dive into JavaScript's Proxy and Reflect API original ↗

16 Jun 2026

Fixing Contentful Preview in Next.js Draft Mode original ↗

14 Jun 2026

Union‑Find Explained: Solving the 'Number of Provinces' Problem original ↗

12 Jun 2026

Privacy by Design is Not a Cookie Banner original ↗

10 Jun 2026

The Great AI Content Collapse: Why Cheap Content Makes Real Expertise More Valuable original ↗

8 Jun 2026

The AI Middle Manager Problem original ↗

4 Jun 2026

Next.js Build Failing on Vercel: How to Find the First Real Failure original ↗

2 Jun 2026

Technical GEO for Websites: Entities, Structured Data, and Crawl Paths original ↗

31 May 2026

State Management in Angular: NgRx vs. SignalStore original ↗

27 May 2026

Schema for Service Pages Without Overclaiming original ↗

26 May 2026

How Service Pages Become Answerable in AI Search original ↗

24 May 2026

AI is Making Technical Debt Cheaper to Create original ↗

23 May 2026

Traffic Dropped After a Replatform: The Technical Checks I Run First original ↗

21 May 2026

E‑Commerce SEO Migration: Product and Category Pages in Next.js original ↗

20 May 2026

The AI Productivity Mirage: When More Output Does Not Mean More Value original ↗

19 May 2026

AI Will Be OK If We Stop Treating It Like Magic original ↗

18 May 2026

Should You Move a Shopify Storefront to Next.js?original ↗

16 May 2026

What is Artificial Superintelligence (ASI)?original ↗

15 May 2026

What is a Timing Attack? Side Channels, Examples, and Safer Comparisons original ↗

13 May 2026

Next.js Multi‑Tenant Architecture original ↗

12 May 2026

State Management in Vue: Vuex vs. Pinia original ↗

11 May 2026

Content Security Policy in Next.js: Static Pages, Nonces, and Real‑World Trade‑Offs original ↗

9 May 2026

Pages Router to App Router Migration Risk Checklist original ↗

8 May 2026

What AEO is, and How It Fits with SEO and GEO original ↗

7 May 2026

Core Web Vitals Got Worse After a Redesign original ↗

4 May 2026

Solving the LeetCode N‑Queens Problem original ↗

3 May 2026

The AI Layoff Trap: When Local Efficiency Becomes Systemic Fragility original ↗

30 Apr 2026

When Production Data Breaks a Next.js Site original ↗

29 Apr 2026

How to Vet a Senior Next.js Developer for a Replatform or Recovery Project original ↗

28 Apr 2026

Using Angular Signals for Performance Optimisation original ↗

27 Apr 2026

Responsible AI Needs an Owner original ↗

23 Apr 2026

NextAuth Works Locally but Fails in Production original ↗

21 Apr 2026

LeetCode: The 'Kth Smallest Element in a BST' Problem original ↗

20 Apr 2026

Using RxJS for State Management in Angular original ↗

17 Apr 2026

Why Next.js Builds Time Out on Vercel original ↗

15 Apr 2026

React Developer vs. Next.js Developer: What Actually Changes in Production original ↗

14 Apr 2026

Backtracking Decision Trees: Solving 'Combination Sum'original ↗

13 Apr 2026

GEO vs. SEO: Where They Overlap, and Where They Don't original ↗

9 Apr 2026

Next.js Site Broke After Deploy: A Production Triage Checklist original ↗

7 Apr 2026

Solving the 'Jump Game' Problem with Greedy Algorithms original ↗

6 Apr 2026

Memoisation in JavaScript: Optimising Function Calls original ↗

3 Apr 2026

Next.js Proxy Replaces Middleware: What Changes in Practice original ↗

2 Apr 2026

CMS Content Not Updating in Next.js original ↗

31 Mar 2026

Dynamic Programming in LeetCode: Solving 'Coin Change'original ↗

30 Mar 2026

Handling API Routes in Next.js: When to Use Server Actions vs. API Routes original ↗

27 Mar 2026

LeetCode: Finding the Diameter of a Binary Tree original ↗

25 Mar 2026

Headless CMS SEO Controls Checklist original ↗

24 Mar 2026

Topological Sort: Solving the 'Course Schedule' Problem original ↗

23 Mar 2026

Enterprise AI Delivery Starts After the Pilot original ↗

19 Mar 2026

Technical SEO Launch Criteria for a Next.js Migration original ↗

17 Mar 2026

What GEO is, and Why It is Not Just SEO for AI original ↗

16 Mar 2026

Understanding the Module Pattern in JavaScript original ↗

11 Mar 2026

How to Compare Rendered HTML Before and After a Migration original ↗

10 Mar 2026

Multi‑Source BFS: Solving the 'Rotting Oranges' Problem original ↗

9 Mar 2026