Latest
Server Actions in Next.js 16 App Router makes mutations dead simple without writing an endpoint. But when you need client-side cache, optimistic revalidation, or reactive data shared across components, that's where Server Actions falls short — and TanStack Query steps in to solve that, not to replace it.
August 17, 2026 · 8′ · TypeScript · app-router
Read moreJava Champion isn't an academic title or a corporate badge. It's recognition of community contribution — and in 2026, quality technical content in Spanish is an undervalued and completely legitimate contribution. My declared goal and the real criteria behind the program.
Aug 18 2026 · 10′ · Tutorials · open source · spring-boot
Stateless JWT isn't the universal answer tutorials promise. If your system needs immediate revocation or fine-grained auditing, state isn't the enemy — it's the solution. Here's the decision framework I use in real identity systems.
Aug 18 2026 · 9′ · Tutorials · seguridad · JWT
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
I wrote about fp-ts this week and was left with an uncomfortable doubt: did I really need all that machinery? A look at when a native discriminated union solves the same problem as Either/Option without the learning curve.
Aug 14 2026 · 7′ · Tutorials · TypeScript · arquitectura de software
Path aliases look innocent until the production build fails with no clear message. I documented the 3 most common breakage cases in a monorepo with Next.js 16 App Router and strict TypeScript, and the config pattern that survived.
Aug 14 2026 · 9′ · Tutorials · TypeScript · pnpm
CAdES and XAdES aren't interchangeable even though both are "advanced signatures." The choice depends on document type, trust profile, and what the CA actually expects to validate. A technical guide with DSS and Java to make the right call before you sign anything.
Aug 12 2026 · 9′ · Tutorials · seguridad · certificados
Virtual Threads solves the cost of spinning up thousands of threads in the JVM. It doesn't solve the blocking problem when your code has synchronized blocks or blocking native calls. JEP 444 says so, but almost nobody reads it to the end.
Aug 11 2026 · 8′ · Tutorials · concurrencia · spring-boot
Architecture, real systems, product decisions and technical lessons. Everything reviewed with my own judgment before it ships.
213 articles published