CI/CD & Testing

2026

1. Flow Town: a map of the work behind software delivery

   Flow Town is a free interactive map of Enablement Engineering: find where your software delivery is stuck, or choose your next DevOps specialisation.

   12 October 20266 min read

2. How many changes can you land at once?

   Merge queues automate rebasing and testing PRs at scale, with batching, speculative checks, and bisection tradeoffs explained through failure-rate math.

   16 August 202613 min read

3. The tests you didn't need to run

   Fix slow CI with test selection: test impact analysis, only-changed flags and Meta's Predictive Test Selection skip the tests a change can't break.

   27 July 20267 min read

4. Two CI strategies to keep main green

   A discussion on CI/CD strategies to keep main green: block bad changes with a merge gate, or land them fast and chase failures with automated bisection and rollback. Or blend both!

   20 July 20269 min read

5. A short series on Test Automation

   Slow CI and flaky tests feel like the price of quality. DORA research shows speed and stability move together. A series on test automation strategies.

   1 July 20262 min read

6. 56 Repositories, 5 Hours and $80: How I automated a large-scale update with AI

   A reproducible AI-assisted workflow for large-scale migrations across many repositories, with Renovate and Claude. 56 repositories, 5 hours, $80.

   23 June 20267 min read