Jacek Sultan — Articles and notesAnalyses, implementation notes and guides from a CTO’s practice: architecture, DevOps, digital accessibility, testing and AI automation.https://jaceksultan.com/en-usHow I decide whether a process is worth automating with AIhttps://jaceksultan.com/articles/when-to-automate-with-ai/https://jaceksultan.com/articles/when-to-automate-with-ai/The biggest cost isn’t the model. It’s checking what the model produces. Here’s the simple calculation I start every automation conversation with.Sat, 31 Oct 2026 00:00:00 GMTAI and automationWhen Docker Swarm still makes sense, and when it starts costing too muchhttps://jaceksultan.com/articles/when-docker-swarm-still-makes-sense/https://jaceksultan.com/articles/when-docker-swarm-still-makes-sense/Swarm isn’t fashionable, but in a small team it often beats Kubernetes. Here’s how I weigh the choice and how I can tell it’s time to change it.Tue, 20 Oct 2026 00:00:00 GMTDevOps and infrastructureAn automated WCAG scan is the start of an audit, not the endhttps://jaceksultan.com/articles/automated-wcag-scan-is-only-the-start/https://jaceksultan.com/articles/automated-wcag-scan-is-only-the-start/A green result from an automated tool only means it didn’t find what it knows how to find. Here’s what the rest of the audit looks like.Tue, 29 Sep 2026 00:00:00 GMTDigital accessibilityBuild your own tool or buy one off the shelf? How I run the numbershttps://jaceksultan.com/articles/build-or-buy/https://jaceksultan.com/articles/build-or-buy/Comparing a subscription to the cost of a single sprint is the most common mistake in “build or buy” decisions. Here’s what else you need to count.Tue, 08 Sep 2026 00:00:00 GMTRunning a tech companyWhat developers should test, and what QA should testhttps://jaceksultan.com/articles/what-developers-test-and-what-qa-tests/https://jaceksultan.com/articles/what-developers-test-and-what-qa-tests/The “who tests this?” argument usually comes from nobody splitting the responsibility. Here’s a simple split that works well in small teams.Tue, 25 Aug 2026 00:00:00 GMTQuality and securityWhy I started writing about technology decisionshttps://jaceksultan.com/articles/why-i-write-about-decisions/https://jaceksultan.com/articles/why-i-write-about-decisions/There are plenty of tutorials. What’s missing are pieces about why someone chose one option over another, and how it turned out a year later.Tue, 04 Aug 2026 00:00:00 GMTArchitecture