Maria's Repair Café
How to grow knowledge in database optimization
Dr. Bernhard Scheffold
I did some serious software development already in the late 1970s,. Then I continued studying Physics and Mathematics. Since then, I've been developing software for various industries
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Latest posts
Why we kept shipping broken software (even with great developers)
Or why we should take the idea of an Andon Cord seriously
Start Thinking in Terms of the System, not just Code
A lesson about wrong assumptions and improving robustness
Pink elephants blowing their noses
AI having trouble with semantics
The day I realized I was delivering code, not value
This is a story about a process of understanding which was not immediate but spanned a few years.
What I hope younger developers learn sooner than I did
How I learned to love code reviews and not to shy away from them
Report from SREDay Cologne, 28. October 2025
I got wind of this conference on very short notice (I got to know the developer events calendar by Aurélie Vache, and checked it for interesting events in the near future.
Why “Best Practices” can be dangerous
I’m afraid that this post will stir up a hornet’s nest.
First Reviews of DevOps Mindset and the People Behind
The book “DevOps Mindset in Software Development, From Apprentice to Journeyman” is now available for a bit more than a month and there are already a few favorable reviews of the book.
From blame to learning: one postmortem that stuck with me
In my blog post "The first time I broke production (and what happened after)” I described an experience with wrecking the productive system of a web shop with quite a bit of revenue.