Juan Torchia

👨‍💻 Desarrollador ☕ JAVA 🐧 Linux 🐳 Docker ⚡ Typescript 🌐https://Juanchi.dev 🚀✨

Buenos Aires, Argentina Joined on Jul 1, 2022 https://juanchi.dev

Education

Ciencias de la Computación — UBA

Work

Full Stack Developer — Nativo Digital

Pinned

DEV Weekend Challenge: Earth Day

Juan Torchia

Apr 20

GreenGate: the agent proposes, the phone decides — building an Auth0 CIBA + Gemini audit for embodied carbon

#devchallenge #weekendchallenge #auth0 #agents

20 min read

Juan Torchia

Aug 23

Actuator Endpoints in Spring Boot: Allowlist, Don't Just Disable the Obvious Ones

#english #springboot #java #actuator

8 min read

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Juan Torchia

Aug 23

Actuator endpoints en Spring Boot: allowlist, no deshabilitar lo obvio

#spanish #espanol #springboot #java

8 min read

Juan Torchia

Aug 22

TigerFS Isn't a Filesystem, It's a Promise of Determinism

#english #rust #sistemasdistribuidos #tigerfs

7 min read

Juan Torchia

Aug 22

TigerFS no es un filesystem, es una promesa de determinismo

#spanish #espanol #rust #sistemasdistribuidos

7 min read

Summer Bug Smash: Smash Stories 🐛🛹

Juan Torchia

Aug 21

The AI demo failed, but the database remembered half of it

#opensource #devchallenge #bugsmash #postgres

9 min read

Juan Torchia

Aug 18

What It Means to Be a Java Champion in 2026: The Real Criteria Behind the Recognition and Why I Care

#english #opensource #springboot #java

9 min read

Juan Torchia

Aug 18

Qué significa ser Java Champion en 2026: el criterio real detrás del reconocimiento y por qué me importa

#spanish #espanol #opensource #springboot

10 min read

Juan Torchia

Aug 18

Stateless JWT vs stateful sessions: the framework I use to choose in identity systems

#english #seguridad #jwt #arquitectura

9 min read

Juan Torchia

Aug 18

JWT sin estado vs sesiones con estado: el criterio que uso para elegir en sistemas de identidad

#spanish #espanol #seguridad #jwt

10 min read

Juan Torchia

Aug 17

Noroboto: Lying Fonts and Rust Mitigation — A Technical Read Without the Hype

#english #linux #sistemas #rust

8 min read

Juan Torchia

Aug 17

Noroboto: Lying Fonts y mitigación en Rust — lectura técnica sin hype

#spanish #espanol #linux #sistemas

9 min read

Juan Torchia

Aug 17

Cline in production: the autonomous code agent for VS Code I use with deliberate constraints

#english #typescript #llm #seguridad

8 min read

Juan Torchia

Aug 17

Cline en producción: el agente de código autónomo para VS Code que uso con restricciones deliberadas

#spanish #espanol #typescript #llm

9 min read

Juan Torchia

Aug 14

A native discriminated union already does what Either promises

#english #typescript #fpts #discriminatedunions

8 min read

Juan Torchia

Aug 14

¿De verdad necesitás fp-ts, o te alcanza un union nativo?

#spanish #espanol #typescript #fpts

8 min read

Juan Torchia

Aug 12

CAdES vs XAdES Digital Signatures in Java: The Differences That Matter When Your CA Asks for One and You've Built the Other

#english #seguridad #certificados #criptografia

10 min read

Juan Torchia

Aug 12

Firma digital CAdES vs XAdES en Java: las diferencias que importan cuando tu CA te pide una y vos tenés la otra

#spanish #espanol #seguridad #certificados

10 min read

Juan Torchia

Aug 11

Virtual Threads Won't Save You From a Badly Placed synchronized

#english #concurrencia #springboot #java

7 min read

Juan Torchia

Aug 11

Virtual Threads no te salva de un synchronized mal puesto

#spanish #espanol #concurrencia #springboot

8 min read

Summer Bug Smash: Clear the Lineup 🐛🛹

Juan Torchia

Aug 10

The bug report that never left the browser

#devchallenge #bugsmash #opensource #javascript

12 min read

Juan Torchia

Aug 7

Functional programming with TypeScript: what fp-ts teaches you even if you never ship it

#english #nextjs #typescript #fpts

9 min read

Juan Torchia

Aug 7

Functional programming con TypeScript: lo que fp-ts enseña aunque no lo uses en producción

#spanish #espanol #nextjs #typescript

10 min read

Juan Torchia

Aug 4

The Complete Guide to Docker HEALTHCHECK: Dockerfile vs Compose vs Orchestrator

#english #docker #devops #postgres

8 min read

Juan Torchia

Aug 4

Guía completa de HEALTHCHECK en Docker: Dockerfile vs Compose vs orquestador

#spanish #espanol #docker #devops

9 min read

Juan Torchia

Aug 2

Qwen3 locally with Ollama: what changed in the architecture and whether it's worth switching

#english #typescript #inferencialocal #agentesia

8 min read

Juan Torchia

Aug 2

Qwen3 en local con Ollama: qué cambió en la arquitectura y si vale el cambio

#spanish #espanol #typescript #inferencialocal

8 min read

Juan Torchia

Jul 29

Prisma Query Logging and PostgreSQL: Where the ORM Ends and the Database Begins

#english #typescript #postgres #observabilidad

7 min read

Juan Torchia

Jul 29

Prisma Query Logging y PostgreSQL: dónde termina el ORM y empieza la base

#spanish #espanol #typescript #postgres

8 min read

Juan Torchia

Jul 28

npm Dependencies: How to Evaluate a Library Before It Hits Production

#english #typescript #pnpm #npm

7 min read

Juan Torchia

Jul 28

Dependencias npm: cómo evaluar una librería antes de meterla en producción

#spanish #espanol #typescript #pnpm

7 min read

Juan Torchia

Jul 23

Strict Null Checks in TypeScript: What the Compiler Won't Tell You and Where It Actually Hurts in Production

#english #nextjs #typescript #produccin

9 min read

Juan Torchia

Jul 23

Strict null checks en TypeScript: lo que el compilador no te dice y dónde sí duele en producción

#spanish #espanol #nextjs #typescript

10 min read

Juan Torchia

Jul 22

DeepSeek API in TypeScript: secure integration and honest model evaluation for code

#english #typescript #nextjs #llm

7 min read

Juan Torchia

Jul 22

DeepSeek API en TypeScript: integración segura y evaluación honesta del modelo para código

#spanish #espanol #typescript #nextjs

8 min read

Juan Torchia

Jul 21

Barman vs pgBackRest: a decision tree for PostgreSQL backup in production

#english #devops #produccion #postgres

9 min read

Juan Torchia

Jul 21

Barman vs pgBackRest: árbol de decisión para backup PostgreSQL en producción

#spanish #espanol #devops #produccion

9 min read

Juan Torchia

Jul 11

Swiper: the touch slider that won't wreck your sprint

#english #react #opensource #mobile

5 min read

Juan Torchia

Jul 11

Swiper: el slider táctil que no te va a arruinar el sprint

#spanish #espanol #react #opensource

5 min read

Juan Torchia

Jul 8

Node.js: the runtime that changed how we think about backend

#english #javascript #node #backend

5 min read

Juan Torchia

Jul 8

Node.js: el runtime que cambió cómo pensamos el backend

#spanish #espanol #javascript #node

5 min read

Juan Torchia

Jul 7

Rate limiting in web apps: what to protect before picking a library

#english #typescript #nextjs #railway

9 min read

Juan Torchia

Jul 7

Rate limiting en aplicaciones web: qué proteger antes de elegir una librería

#spanish #espanol #typescript #nextjs

9 min read

Juan Torchia

Jul 6

Spring Boot Actuator: What to Expose, What to Hide, and What to Check Before Adding Endpoints

#english #devops #backend #produccion

7 min read

Juan Torchia

Jul 6

Spring Boot Actuator: qué exponer, qué ocultar y qué mirar antes de agregar endpoints

#spanish #espanol #devops #backend

8 min read

Juan Torchia

Jul 5

Next.js App Router Caching: revalidate, dynamic, and no-store Without the Folklore

#english #react #typescript #nextjs

8 min read

Juan Torchia

Jul 5

Next.js App Router caching: revalidate, dynamic y no-store sin folklore

#spanish #espanol #react #typescript

9 min read

Juan Torchia

Jul 3

Docker healthchecks: what they actually measure and what you shouldn't promise

#english #docker #devops #railway

7 min read

Juan Torchia

Jul 3

Docker healthchecks: qué miden de verdad y qué no deberías prometer

#spanish #espanol #docker #devops

7 min read

Juan Torchia

Jul 2

Digital Signatures: Format, Certificate, and Validation Policy Are Not the Same Thing

#english #seguridad #pki #identidaddigital

8 min read

Juan Torchia

Jul 2

Firma digital: diferencia entre formato, certificado y política de validación

#spanish #espanol #seguridad #pki

9 min read

Juan Torchia

Jul 2

Sniffnet: monitor your network without losing your mind to tcpdump

#english #networking #opensource #rust

5 min read

Juan Torchia

Jul 2

Sniffnet: monitoreá tu red sin volverte loco con tcpdump

#spanish #espanol #networking #opensource

5 min read

Juan Torchia

Jun 29

XGBoost: the gradient boosting that dominated Kaggle and survived the hype

#english #machinelearning #opensource #python

5 min read

Juan Torchia

Jun 29

XGBoost: gradient boosting que dominó Kaggle y sobrevivió al hype

#spanish #espanol #machinelearning #opensource

5 min read

Juan Torchia

Jun 26

PyTorch: the deep learning framework that won the war

#english #machinelearning #deeplearning #opensource

5 min read

Juan Torchia

Jun 26

PyTorch: el framework de deep learning que ganó la guerra

#spanish #espanol #machinelearning #deeplearning

5 min read

Juan Torchia

Jun 23

TensorFlow: the ML elephant that's still standing

#english #machinelearning #deeplearning #arquitectura

5 min read

Juan Torchia

Jun 23

TensorFlow: el elefante de ML que sigue en pie

#spanish #espanol #machinelearning #deeplearning

5 min read

Juan Torchia

Jun 22

Rate limiting in Next.js: what to protect before picking a library

#english #typescript #nextjs #approuter

9 min read

Juan Torchia

Jun 22

Rate limiting en Next.js: qué proteger antes de elegir una librería

#spanish #espanol #typescript #nextjs

9 min read