Valentin Galfré — Software EngineeringEngineering writing by Valentin Galfré: system design, API patterns, observability, and the kind of work you only notice when it is missing.https://galfrevn.com/en-usBuilding a Type-Safe API With Nothing But Effecthttps://galfrevn.com/entries/effect-api/https://galfrevn.com/entries/effect-api/Build a complete HTTP API using only the Effect ecosystem: routing, validation, database, auth, and tests. No Express, no Zod, no glue code.Mon, 06 Apr 2026 00:00:00 GMTTypeScriptEffectAPI DesignNode.jsType Safetyvalentin@galfrevn.com (Valentin Galfré)Running Kubernetes Locally Without Losing Your Mindhttps://galfrevn.com/entries/kubernetes-locally/https://galfrevn.com/entries/kubernetes-locally/A practical guide to local Kubernetes development: which tools to pick, how to ship a fast dev loop, and when Docker Compose is the better answer.Mon, 06 Apr 2026 00:00:00 GMTKubernetesDevOpsDeveloper ExperienceLocal Developmentvalentin@galfrevn.com (Valentin Galfré)The Kind of Work You Only Notice When It's Missinghttps://galfrevn.com/entries/manifesto/https://galfrevn.com/entries/manifesto/On invisible engineering: the case that great software is the work nobody mentions, and why removal beats cleverness every time you ship.Mon, 06 Apr 2026 00:00:00 GMTEngineering PhilosophySoftware DesignEngineering Leadershipvalentin@galfrevn.com (Valentin Galfré)Observability From Zero in a Turborepo Monorepohttps://galfrevn.com/entries/observability-monorepo/https://galfrevn.com/entries/observability-monorepo/Wire logs, metrics, and traces across microservices with Grafana, Loki, Tempo, and OpenTelemetry. A full setup from an empty Turborepo to working dashboards.Mon, 06 Apr 2026 00:00:00 GMTObservabilityMonoreposOpenTelemetryGrafanaDevOpsMicroservicesvalentin@galfrevn.com (Valentin Galfré)