Be the change you want to see in this world
Introduction I firmly believe in tool composition. Dedicated tools are good, but the moment one tool tries to do too much, it becomes bloated with features and, almost always, speed and quality degrade. Agentic tools are no exception, and now everyone wants to build their custom agent harness, their custom …
Review Title : CLI: A Practical Guide to Creating Modern Command-Line Interfaces Author(s) : Derick Schaefer Presentation quality is a bit subpar: In general, formatting is what you would expect from a technical book: titles, notes/remarks, code blocks,... All those are fine. But then, the diagrams look like made from …
The scenario From time to time, my blog gets fully crawled. It used to be mostly Google, and a few times Bing. Lately, I still have one or two full-site crawls per month, and I've noticed an increase in requests with referrers such as chatgpt.com , duck.ai , gemini.google …
I recently had to explain to a friend what "evals" are. After an "imagine classic software tests, but for AI agents and/or models" explanation, the follow-up questions were several variations of "But how?". So I decided to illustrate it with an example. I quickly wrote a tiny shell script …
Review Title : Tidy First?: A Personal Exercise in Empirical Software Design Author(s) : Kent Beck This is a short book. Very short , if you exclude the fluff and theory. It circles around 15 tidyings (small refactoring techniques), plus some general topics, like coupling vs decoupling, how to do and sequence …
I am slowly nerd sniping myself into learning more about how Large Language Models work. Improving instructions, skills, and agents is quite interesting on its own, but I am also attracted towards understanding the internals, at least to a basic level. I had been meaning to look at Andrej Karpathy …
I have a few scripts that I run daily, mostly focused around processing stats and recreating my dashboards (static HTMLs with a chart viewer). On their latest iteration, I built them in Javascript, and while they serve their purpose, that poses two limitations: I need to have Node.js installed …
After having played for +130 hours the videogame Vampire Survivors , when the follow up, Vampire Crawlers was recently released, I had to play it. Now, +20 hours of playtime later I was able to finish it once, and again, like I did with Vampire survivors , I wanted to fiddle around …
Instead of just saying "LLMs work way better now", I thought that it would be interesting for once to show something more "applied". First, a screenshot: This is a GitHub pull request of one of my pet projects (private, at least for now). I haven't manually typed a single line …
Intro I'm heavily leaning towards agentic-driven development, although done "my way": Focused changes, continuous iteration (including on rules, instructions, subagents, etcetera), and unless it is a simple local script, everything done via TDD. This change also means a significant increase in code reviewing effort. I now code less, but review …
Review Title : AI Engineering: Building Applications with Foundation Models Author(s) : Chip Huyen This book provides a broad and structured overview of how modern AI systems built on top of large language models actually work. Rather than focusing on specific tools or frameworks, it explains the core concepts behind foundation …
I now prefer almost exclusively digital books, but occasionally, they are available only in paper. The following two are my latest physical purchases: Something old The item on the left is the first development book I read, "80X86 Assembly Language", from 1995, which only exists in Spanish. A great book …
Disclaimer: The following reflects personal opinions based on experimentation outside of work. My Story (the boring part) I started coding at 13, first in C and later in x86 Assembly, learning mostly from books and magazines. I almost skipped university, out of naivety and overconfidence. Although I didn't finish my …
Things evolve so quickly in the Generative AI space that, if you're not frequently reading about it, you might miss a significant number of changes. I've noticed that not everyone is aware of, as of February 2026, the main mechanisms that you can use to "enhance" your Agentic AI usage …
Despite not having worked with it actively in recent years, I like the Python Django framework a lot. It is a very complete ORM + web package, while at the same time being flexible enough to allow you to discard many of the components you don't need. I built a project …