Prisma's query log shows you what SQL the ORM generated, not why that SQL is slow. A practical guide to knowing when logging is enough and when you need to go straight into PostgreSQL.
Jul 29 2026 · 8′ · Tutorials · TypeScript · postgresql
Actuator isn't the problem. The problem is enabling it without a clear exposure policy. A pragmatic guide to using it as an operational tool without turning it into unnecessary public attack surface.
Jul 06 2026 · 8′ · Tutorials · devops · backend
A healthcheck that only says "the process responds" can hide entire business failures. What Docker HEALTHCHECK actually measures, where people overestimate it, and a decision matrix so you stop promising more than the mechanism can deliver.
Jul 03 2026 · 7′ · Tutorials · docker · devops
Actuator isn't the problem. Enabling it without a clear exposure policy is. A practical guide to using it as an operational tool without turning it into unnecessary public attack surface.
Jun 17 2026 · 8′ · Tutorials · devops · backend
OpenTelemetry in Next.js works, but the default propagator silently breaks the trace at the edge/node boundary. Here's what you need to configure explicitly so context doesn't vanish between Middleware, Server Components, and Server Actions.
Jun 17 2026 · 8′ · Tutorials · TypeScript · nextjs
Prisma Client logs show you what queries the ORM generated. PostgreSQL has its own observability layer. Confusing the two is the source of incomplete diagnostics. Here I separate the two planes and give you a concrete criterion for deciding which one to look at first.
Jun 11 2026 · 8′ · Tutorials · TypeScript · backend
Actuator isn't the problem. The mistake is adding it to a project with no clear exposure policy. Here I break down which endpoints to enable, which to block, and what decisions to make before the first deploy.
Jun 01 2026 · 7′ · Tutorials · backend · produccion
A healthcheck that only says "the process is responding" can hide serious business-level failures. Let's break down what the HEALTHCHECK instruction actually promises, where the standard recipe falls apart, and how to use it as the limited operational signal it really is — not as a guarantee of heal
May 28 2026 · 8′ · Tutorials · node.js · docker
OpenTelemetry doesn't improve performance. It improves diagnostic quality when a slow request mixes DB, downstream, N+1, and partial errors. This reproducible lab shows which signals stay hidden when you only have logs, and what appears when you look at the trace.
May 16 2026 · 5′ · Experiments · Experimentos · backend
Architecture, real systems, product decisions and technical lessons. Everything reviewed with my own judgment before it ships.
213 articles published