Ibrahim Cesar's Blog

Flexibility vs. governance.

When two services need to agree on something, you need a pullback.

Products, pullbacks, and terminal objects are all limits.

Guillermo Rauch says everyone is now a programmer.

API Gateways are products.

A tradução brasileira de Estrutura e Interpretação de Programas de Computador — Edição JavaScript está completa.

A behind-the-scenes look at building open-source skills & steering for AI coding agents, and the empirical story of getting from 15% recall to 100%.

When the world's richest man can simply 'correct' an AI to reflect his own values, what does that tell us about the entire alignment discourse?

When you change from one architecture to another, changes must be consistent everywhere.

Every migration is a functor — a structure - preserving transformation between systems.

Uma explicação visual e interativa de como Large Language Models processam texto, desde a tokenização até a geração de respostas.

When services don't work together, it's not random—it's one of four predictable failure modes.

When services don't compose, it's not a bug—it's a mathematical impossibility.

A personal celebration of a decade with the AWS Well-Architected Framework—from reader to contributor—and a philosophical exploration of why it matters as a sociotechnical artifact.

A system is completely characterized by how other systems interact with it.

How Claude Code found 21 improvements in react-lite-youtube-embed: critical bugs, performance wins, and SLSA Level 3 security.

A monolith and microservices can be mathematically equivalent.

Stop designing services.

Category theory isn't abstract nonsense—it's the formal language for the problems Solutions Architects already face.

Announcing my MBA thesis research: applying category theory, sheaf cohomology, and cybernetics to understand why some open source projects thrive while others collapse.

From Bartosz Milewski's Haskell-centric approach to something tailored for the JS/TS ecosystem.

Liberating Our Collective Greatness through Slowification, Simplification, and Amplification

O IAM é como a Força na AWS: Rodeia e permeia tudo em nossos sistemas.

AWS CDK (Cloud Development Kit) is an open source framework to provision infrastructure in the Cloud by writing code in Python, TypeScript, JavaScript, .NET, Java

⚠️ MUST READ ALERT: A ride from IT engine room to the penthouse, to achieve our business goals

As I awake one morning from uneasy dreams, I found myself asking why I never tried to use Apache Kafka.

Não há data prevista de publicação, me acompanhe para estar entre as primeiras pessoas a saber!

Não existe algoritmo de compressão para experiência. — Andy Jassy

My top picks for technical / technology related books

Alguns pontos sobre essa nova onda de tecnologias que vejo como decisivos para sua adoção e efeitos na sociedade

Framework para React em produção

Apresentando duas obras de ficção de minha autoria

Excelente apresentação com um dos mais importantes pensadores da computação

Conheça mais profundamente o AWS CDK

Instalando e iniciando o Bootstrapping do CDK em sua conta

This framework is not Agile at all.

Integração Contínua do time e Entrega Contínua de valor

Let's event lead the way to tackle complexity

The fair metrics that are three biased metrics in a trenchcoat

Incremental Static Regeneration is Next.js superpower

Da infra ao código, todo em TypeScript!

Um clássico que te leva ao amâgo de programar

As peças e história de um protocolo

As soon you start to read it, is safe to say, you'll be happy

A (estranha?)

The largest bank in Latin America will move half of its infra to AWS Cloud

Além de multiclouds, há multi conceitos de multicloud.

This is water, my friend

An Open Source story

If practical books are your type, this is for you!