Architecture, real systems, product decisions and technical lessons. Everything reviewed with my own judgment before it ships.
240 articles published
Apache Spark has been the de facto standard for processing data at scale for over a decade. We go over why it's still alive, how it works under the hood, and when you should NOT use it.
Oct 08 2026 · 5′ · Experiments · java · big data
I designed a small experiment to see if Mem0 reduces context bloat in long Cline sessions. Short answer: it helps with repetition, it doesn't replace limiting the agent's scope.
Sep 27 2026 · 8′ · Tutorials · agentes-ia · cline
Pasting a Claude or DeepSeek API key straight into your code "just to test it quick" leaves a trail in your git history and your logs. A no-nonsense guide to environment variables, rotation, and what to check before sharing a repo.
Sep 09 2026 · 7′ · Tutorials · nextjs · anthropic
A proposed method for observing network traffic during an AI agent task. No measured results or automatic attribution to individual processes.
Sep 07 2026 · 2′ · Tutorials · agentes-ia · networking
DeepSeek Reasonix shows up as a native coding agent with aggressive caching and low cost. Before you adopt it or dismiss it, there's a more useful question: what specific problem does it actually solve in a real stack, and what reproducible experiment confirms that?
Sep 03 2026 · 9′ · Opinion · LLM · ia
Fonts lie. Noroboto documents how the text subsystem can return incorrect metrics and proposes mitigations in Rust. Before you copy it into production, you need to understand what problem it actually solves, where the common recipe breaks down, and what reproducible experiment is actually worth runn
Aug 17 2026 · 8′ · Opinion · linux · sistemas
Cline can create files, run commands, and open the browser autonomously from inside VS Code. That sounds like productivity. It also smells like risk if you haven't thought through the permissions before you start. My thesis: the mental model matters more than the tool.
Aug 17 2026 · 9′ · Tutorials · TypeScript · LLM
Qwen3 landed with thinking mode and real improvements in code generation. But before you replace the model already running in your Ollama setup, there are technical questions you need to answer first. I answer them here without selling hype.
Aug 02 2026 · 9′ · Tutorials · TypeScript · Inferencia Local
Rate limiting isn't an npm dependency — it's an abuse policy. Before copying middleware, you need to define what asset you're protecting, what abuse pattern you expect, and what a false positive costs you. A guide with a decision matrix, real gotchas, and observability for Next.js.
Jun 22 2026 · 9′ · Tutorials · TypeScript · nextjs