kiquetal — Systems Architecture BlogResilience Engineering, Distributed Systems, Cloud Nativehttps://kiquetal.dev/Designing a zero-ops newsletter pipeline: architecture and trade-offs | Diseñando un pipeline de newsletter sin operaciones: arquitectura y trade-offshttps://kiquetal.dev/blog/2026-08-12-newsletter-system-design/https://kiquetal.dev/blog/2026-08-12-newsletter-system-design/ <div class="lang-en-content"> <p>How I built a self-accountability newsletter system using Cloudflare Workers, KV state machines, and Resend — with C4 architecture diagrams, idempotency guarantees, and behavioral constraints baked into infrastructure.</p> </div> <div class="lang-es-content" style="display:none;"> <p>Cómo construí un sistema de newsletter con auto-accountability usando Cloudflare Workers, máquinas de estado KV y Resend — con diagramas C4, garantías de idempotencia y restricciones de comportamiento integradas en la infraestructura.</p> </div> Wed, 12 Aug 2026 00:00:00 GMTBuilding a custom external authorization middleware with Go and Istio | Construyendo un middleware de autorización externa personalizado con Go e Istiohttps://kiquetal.dev/blog/2026-08-08-auth-ext-middleware/https://kiquetal.dev/blog/2026-08-08-auth-ext-middleware/ <div class="lang-en-content"> <p>A step-by-step guide on how to build a highly optimized HTTP/gRPC external authorizer middleware for Istio and secure your services at the mesh layer.</p> </div> <div class="lang-es-content" style="display:none;"> <p>Una guía paso a paso sobre cómo construir un middleware autorizador externo HTTP/gRPC altamente optimizado para Istio y asegurar tus servicios en la capa de mesh.</p> </div> Sat, 08 Aug 2026 00:00:00 GMTIntroducing Nomos OSS: Open-source architectural foundation | Presentando Nomos OSS: Base arquitectónica de código abiertohttps://kiquetal.dev/blog/2026-08-08-nomos-oss/https://kiquetal.dev/blog/2026-08-08-nomos-oss/ <div class="lang-en-content"> <p>TODO</p> </div> <div class="lang-es-content" style="display:none;"> <p>TODO</p> </div> Sat, 08 Aug 2026 00:00:00 GMTFunctional Programming with Java 21 | Programación Funcional con Java 21https://kiquetal.dev/blog/2026-06-27-functional-programming-with-java-21/https://kiquetal.dev/blog/2026-06-27-functional-programming-with-java-21/ <div class="lang-en-content"> <p>Explore the modern functional paradigm in Java 21 using Records, Sealed Interfaces, Pattern Matching, and Lambdas.</p> </div> <div class="lang-es-content" style="display:none;"> <p>Explora el paradigma funcional moderno en Java 21 utilizando Records, Interfaces Selladas, Pattern Matching y Lambdas.</p> </div> Sat, 27 Jun 2026 00:00:00 GMTRailway Oriented Programming | Programación Orientada a Vías (Railway Oriented Programming)https://kiquetal.dev/blog/2026-06-24-railway-oriented-programming/https://kiquetal.dev/blog/2026-06-24-railway-oriented-programming/ <div class="lang-en-content"> <p>An elegant functional pattern to handle errors and flow control without deeply nested exceptions or conditionals.</p> </div> <div class="lang-es-content" style="display:none;"> <p>Un patrón funcional elegante para manejar errores y control de flujo sin excepciones o condicionales anidados.</p> </div> Wed, 24 Jun 2026 22:18:07 GMTApplying Functional to Java 21 on Quarkus | Aplicando Funcional a Java 21 en Quarkushttps://kiquetal.dev/blog/2026-04-04-applying-functional-to-java21-on-quarkus/https://kiquetal.dev/blog/2026-04-04-applying-functional-to-java21-on-quarkus/ <div class="lang-en-content"> <p>Exploring functional programming patterns in Java 21 using Quarkus.</p> </div> <div class="lang-es-content" style="display:none;"> <p>Explorando patrones de programación funcional en Java 21 usando Quarkus.</p> </div> Sat, 04 Apr 2026 00:00:00 GMTIstio with spire configuration | Istio con configuración de spirehttps://kiquetal.dev/blog/2026-02-13-istio-with-spire-configuration/https://kiquetal.dev/blog/2026-02-13-istio-with-spire-configuration/ <div class="lang-en-content"> <p>TODO</p> </div> <div class="lang-es-content" style="display:none;"> <p>TODO</p> </div> Fri, 13 Feb 2026 12:00:00 GMTEnd to End encryption with quarkus | Encriptación de extremo a extremo con Quarkushttps://kiquetal.dev/blog/2026-02-13-e2s-encryption-with-quarkus/https://kiquetal.dev/blog/2026-02-13-e2s-encryption-with-quarkus/ <div class="lang-en-content"> <p>An implementation of e2e encryption.</p> </div> <div class="lang-es-content" style="display:none;"> <p>Una implementación de encriptación e2e.</p> </div> Fri, 13 Feb 2026 00:00:00 GMTLearning about spire on k8s | Aprendiendo sobre SPIRE en K8shttps://kiquetal.dev/blog/2026-02-13-learning-about-spiffe-on-k8s/https://kiquetal.dev/blog/2026-02-13-learning-about-spiffe-on-k8s/ <div class="lang-en-content"> <p>TODO</p> </div> <div class="lang-es-content" style="display:none;"> <p>TODO</p> </div> Fri, 13 Feb 2026 00:00:00 GMTClient and Envelope Encryption on fly | Encriptación cliente y encriptación de sobre en fly.iohttps://kiquetal.dev/blog/2026-01-31-encryption-on-fly/https://kiquetal.dev/blog/2026-01-31-encryption-on-fly/ <div class="lang-en-content"> <p>A ready integration to receive a file from the client apply aes-gcm-256 on this file and then verify on server and save using another aes-gcm-256 on server(s3-compatible)</p> </div> <div class="lang-es-content" style="display:none;"> <p>Una integracón lista para demostrar como utilizar la encriptación aes-gcm-256 desde el cliente y aplicación realiza una encriptación de sobre antes de aloja en el server(s3-compatible)</p> </div> Sat, 31 Jan 2026 00:00:00 GMTNATS server on fly.io | Instalación de NATS server en fly.iohttps://kiquetal.dev/blog/2026-01-31-nats-on-fly/https://kiquetal.dev/blog/2026-01-31-nats-on-fly/ <div class="lang-en-content"> <p>Clear instructions to install and put NATS on fly.io</p> </div> <div class="lang-es-content" style="display:none;"> <p>Instalación sencilla de NATS en fly.io</p> </div> Sat, 31 Jan 2026 00:00:00 GMT