blog/custom-software.html

WHEN OFF-THE-SHELF STOPS WORKING

Bespoke web development, build vs buy, microservices, real-time apps, and what custom actually costs in 2026. For founders past the no-code phase.

→ Read the Custom Software & Architecture guide first ← Back to all topics

A brick wall being replaced piece by piece with modern glass panels, suggesting incremental modernization of a legacy web application

How to Modernize a Legacy Web Application in 2026

A step-by-step guide to modernizing a legacy web application in 2026: the strangler-fig pattern, replatform vs rebuild, framework migrations, and an SEO-safe cutover.

31 May 2026
A stone archway being rebuilt with modern steel and glass at dusk, suggesting legacy systems modernised onto a current stack

Legacy Application Modernization in 2026: A Practical Playbook

A practical 2026 playbook for legacy application modernization: the five strategies, when to rebuild vs replatform, realistic cost ranges, and how to migrate without losing rankings.

31 May 2026
Two laptops side by side showing AI chat interfaces on a clean modern desk

Kimi and Minimax: how I use China's AI for deep research and design mockups

Two Chinese AI tools, Kimi by Moonshot and Minimax, are doing deep research and full-app design mockups at a level I have not seen from US tools yet. How my team uses them daily alongside Claude and GPT, with the exact workflow.

7 May 2026
Hero image for Rapnet vs Nivoda vs IDEX: choosing your diamond feed in 2026

Rapnet vs Nivoda vs IDEX: choosing your diamond feed in 2026

Three diamond feeds, three integration paths, three pricing models. The honest comparison from someone who has shipped all three on production jewelry sites.

7 May 2026
A traditional balance scale on a clean wooden surface, ingots on one side and a small geometric productivity icon on the other

What Claude Code actually costs at agency scale in 2026

Claude Code costs Seahawk roughly 1,200 to 2,400 USD per engineer per month at production usage in 2026. The honest breakdown of what we spend, what drives variance, and the math.

5 May 2026
Three stacked architectural drawing sheets with subtle differences, suggesting layered standards across client projects

CLAUDE.md for agencies: scaling AI coding standards across client projects

Solo-dev CLAUDE.md advice fails at agency scale. The three-layer model (agency-wide / client-specific / per-engagement) we run at Seahawk across 200+ client repositories.

5 May 2026
A clean shelf with eight distinct geometric tools arranged in a precise row, suggesting a curated production stack

The MCP servers I run in production at Seahawk: an honest stack

The MCP ecosystem has 200+ servers; the production stack we actually run is 8. Filesystem, Puppeteer, Postgres, Brave, GitHub, Sentry, Notion, Linear. What we tried and dropped.

5 May 2026
A clean modern terminal window beside the WordPress logo abstracted into geometric blocks, soft warm lighting, editorial illustration

Claude Code for WordPress: the workflow my agency runs in 2026

Claude Code is built for code, not WordPress, but the agency that runs it well ships at 3x velocity. The CLAUDE.md, the MCP stack, and the WordPress workflows that compress most.

5 May 2026
Vintage reel-to-reel tape machine running autonomously in a warm amber-lit studio, 35mm film grain

Agentic Development: Letting Claude Drive the Whole Loop

Claude doesn't just autocomplete anymore. It plans, writes, runs tests, reads the error, and tries again, all without you babysitting it. Here's what I've learned letting it drive the whole loop.

3 May 2026
A dim developer's desk at night with glowing monitor, scattered notes, and a cold coffee mug in moody editorial lighting

Prompt Engineering for Production Code: Hard Lessons

After shipping code with AI assistance across hundreds of projects, I've learned that prompt engineering isn't a soft skill -- it's the difference between production-ready output and a debugging nightmare at 11pm.

2 May 2026
Rows of metal filing cabinets in a warmly lit archive room, one drawer open revealing organised folders

Enterprise DAM in 2026: Costs, Choices, and Why It Fails

Enterprise digital asset management sounds boring until you're three months into a $180k implementation and nobody can find the approved logo. Here's what DAM actually costs, how to choose, and why most projects quietly die.

1 May 2026
Hero image for "Online Auction Site Tech Stack: What I'd Build in 2026"

Online Auction Site Tech Stack: What I'd Build in 2026

After 9 years and 12,000+ sites, here's the exact stack I'd choose to build an online auction platform in 2026 -- real-time bidding, payments, infra, and all the mistakes I'd avoid this time around.

30 Apr 2026
Hero image for "Building a Real-Time Auction Site with Next.js & Supabase"

Building a Real-Time Auction Site with Next.js & Supabase

Real-time bidding is one of the hardest UI problems to get right. Here's exactly how I'd architect a live auction site with Next.js and Supabase -- from schema design to WebSocket subscriptions -- without losing your mind in the process.

30 Apr 2026
Hero image for "Build vs Buy SaaS: A Decision Framework for Founders"

Build vs Buy SaaS: A Decision Framework for Founders

Every founder hits this wall eventually. Do you build the thing yourself -- or pay someone else's subscription forever? Here's the framework I use after 9 years and 12,000+ sites.

30 Apr 2026
Hero image for "How to Cost Custom Software in 2026: A Working Estimator for Founders"

How to Cost Custom Software in 2026: A Working Estimator for Founders

Quoting custom software is where founders haemorrhage money -- or walk away from deals that could've made them. Here's the estimator framework I actually use, with real numbers attached.

30 Apr 2026