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    Jacar categories — explore the topics A rocket whose eyes follow your cursor.

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    Tecnología

    Technology that matters: trends, tools, and shifts that affect how we work.

    Filter #apparmor 1 #apple silicon 1 #arm 1 #auto-instrumentacion 1 #auto-instrumentation 1 #beyla 1 #bsl 1 #cgroups 1 #ci 1 #Ciberseguridad 1 #cloudflare workers 1 #cncf 1
    Docker Scout: Vulnerabilities from Build to Registry
    Herramientas

    Docker Scout: Vulnerabilities from Build to Registry

    Docker Scout analiza imágenes de forma continua contra bases de CVE y sugiere remediaciones. Compite con Trivy, Grype y Snyk. Cuándo encaja y qué renuncias implica.

    87 10 min August 27, 2024 4.4
    Grafana Beyla: Auto-Instrumentation Without Touching Code
    Herramientas

    Grafana Beyla: Auto-Instrumentation Without Touching Code

    Beyla genera trazas OpenTelemetry de apps existentes vía eBPF, sin cambios de código. Cuándo aporta valor real y cuándo el SDK sigue siendo necesario.

    88 8 min August 24, 2024 4.5
    Snapdragon X Elite: ARM Arrives at Productivity PCs
    Tecnología

    Snapdragon X Elite: ARM Arrives at Productivity PCs

    Qualcomm Snapdragon X Elite pone ARM en portátiles Windows con rendimiento comparable a Apple M-series. Qué significa y qué falta todavía.

    300 9 min August 21, 2024
    Cloudflare Workers in 2024: KV, D1, and the New Edge Stack
    Arquitectura

    Cloudflare Workers in 2024: KV, D1, and the New Edge Stack

    Workers + KV + D1 + R2 + Durable Objects conforman un stack edge completo. Qué falta, qué ya funciona y cuándo compite con AWS.

    312 8 min August 18, 2024 4.5
    Kubernetes 1.31: the stabilisations that matter day to day
    Arquitectura

    Kubernetes 1.31: the stabilisations that matter day to day

    Kubernetes 1.31 no trae fuegos artificiales, pero estabiliza AppArmor, convierte los sidecars en ciudadanos de primera clase y deja DRA a un paso del GA. Repaso desde la óptica de quien opera clústeres.

    109 11 min August 15, 2024 4.5
    OpenTelemetry: Stable Logs for Complete Telemetry
    Arquitectura

    OpenTelemetry: Stable Logs for Complete Telemetry

    OpenTelemetry declaró estables las señales de logs en julio de 2024. La tercera pata de la observabilidad moderna por fin se une a métricas y trazas bajo un único protocolo y un modelo de datos común.

    85 12 min August 3, 2024
    How to Install CrowdSec as a Community WAF
    Cómo Instalar

    How to Install CrowdSec as a Community WAF

    Recorrido práctico para desplegar CrowdSec como WAF con Traefik. Arquitectura desacoplada, bouncers, remediación con captcha y el valor real de la blocklist comunitaria.

    94 14 min July 22, 2024 4.3
    OpenTofu in Production: The First Year After the Fork
    Herramientas

    OpenTofu in Production: The First Year After the Fork

    OpenTofu llegó a GA en enero de 2024. Seis meses después, ¿es un reemplazo drop-in de Terraform o un ecosistema divergente?

    93 8 min July 16, 2024 4.5
    Rust in Linux: Experimental Drivers Opening the Way
    Desarrollo de Software

    Rust in Linux: Experimental Drivers Opening the Way

    Rust en el kernel Linux está madurando. Primeros drivers mergeados, debate activo con maintainers y qué significa para la memory safety del OS.

    78 10 min July 7, 2024 4.5
    NIS2: Transposition Status Across Member States
    Tecnología

    NIS2: Transposition Status Across Member States

    La directiva NIS2 entró en vigor el 17 de octubre de 2024. Qué estados ya transpusieron, qué obligaciones concretas y cómo prepararse sin pánico.

    164 9 min July 1, 2024
    WASI 0.2 GA: Truly Composable WebAssembly
    Desarrollo de Software

    WASI 0.2 GA: Truly Composable WebAssembly

    WASI 0.2 trajo el Component Model a GA. Cómo cambia la portabilidad server-side de WebAssembly y qué casos son viables hoy.

    175 9 min June 28, 2024 4.3
    Parca: Open eBPF-Based Continuous Profiling
    Tecnología

    Parca: Open eBPF-Based Continuous Profiling

    Parca hace profiling de todo el cluster 24/7 con overhead mínimo. Cuándo tiene sentido y cómo interpretar flame graphs para debugging real.

    93 10 min June 22, 2024

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    Javier Cañete Arroyo — JACAR La marca JACAR toma las dos primeras letras de cada parte del nombre: JAvier, CAñete, ARroyo. CEO · FUNDADOR JAvierCAñeteARroyo JACAR JAvier · CAñete · ARroyo

    Production notes on technology, DevOps, and AI from Madrid.

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    • Inteligencia Artificial 173
    • Tecnología 147
    • Arquitectura 91
    • Metodologías 75
    • Herramientas 56
    • Desarrollo de Software 54

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