Pieter van der Meer
Engineer in Data & Software | Conference Speaker | Sailor at Heart | (Sports) PhotographerThoughts, stories, Howto’s, Ideas, Conferences.
Latest posts
Thoughts, stories, how-to's and ideas from the blog.
Agentic Coding in 2026: Models, Tools, and Cost
Executive summary This page merges two earlier working documents into one verified reference: a practical paper on the model-and-tool landscape (with prices and quotas) and a conceptual paper on the shift from code assistants to role-based agent systems. It is written for developers and technical leads who build with AI coding agents and need to make model, tool, and budget decisions.
Why is the default python hash not deterministic?
Why Python’s Default hash() Is Not Deterministic Python’s built-in hash() is intentionally non-deterministic across process runs for security reasons. This design protects against hash-flooding attacks but makes hash() unsuitable for stable identifiers, persistence, or cross-process coordination. As a result, developers must introduce explicit hashing strategies, which adds extra complexity and boilerplate code that would otherwise be unnecessary.
Certificates and all you wanted to ...
Intro First to start with, i am not a mathematician or cryptographer thus when there are errors in this post regarding either subject i am sorry, but please let me know.
The Art of Not Writing (aka My Ongoing Masterclass in Procrastination)
The Art of Not Writing (aka My Ongoing Masterclass in Procrastination) Look, I know I should be writing new blog posts. Really, I do. In fact, I’ve been thinking about writing one for weeks — and let me tell you, I’ve done an absolutely phenomenal job of thinking about it. The execution part? …Yeah, not so much.
Presentation on Dyslexia @Devoxx Belgium
Recently I had a appearance on Devoxx Belgium and JFall in the Netherlands. Subject of this quicky, The dyslexic programmer, creativity did not kill the cat.