depends_on without a condition only waits for the container to exist, not for the app inside it to respond. Only with condition: service_healthy in Docker Compose do you get a real guarantee of ordered startup.
Sep 09 2026 · 6′ · Tutorials · docker · devops
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
The Server Action resolves, the toast says "saved," and the UI still shows the old data for a beat. That beat is the gap setQueryData closes without waiting for the full server roundtrip.
Sep 08 2026 · 7′ · Tutorials · Next.js · React
I installed Sniffnet to check what network traffic Cline and background LLM API calls actually generate. Here's what the tool shows you, and what you can't conclude from a single observation session.
Sep 07 2026 · 8′ · Tutorials · agentes-ia · networking
I confused revalidatePath with revalidateTag on a small project and ended up invalidating pages that had nothing to do with the change. Here's the real difference between the two cache granularities in Next.js 16, with a decision checklist.
Sep 04 2026 · 7′ · Tutorials · Next.js · React
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
Yesterday I left a detail hanging: it's not that "something" blocks the carrier thread. There are exactly two scenarios, documented in JEP 444, and if you migrate legacy code without knowing them, pinning is going to explain why your virtual thread pool isn't scaling the way you expected.
Aug 28 2026 · 7′ · Tutorials · concurrencia · java
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
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.
Aug 17 2026 · 8′ · Tutorials · TypeScript · app-router
Architecture, real systems, product decisions and technical lessons. Everything reviewed with my own judgment before it ships.
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