Essays and notes on AI, software engineering, developer tools, systems, and the shape of modern product building.
Antonio B De Castro

The BEAM VM’s concurrency model is perfect for orchestrating parallel LLM calls and streaming responses
Antonio B De Castro

Understanding memory, threads, and syscalls makes you better at Go, Python, and Node too
Antonio B De Castro

How Meta accidentally democratized AI and why it matters
Antonio B De Castro

It was never about which is better—it’s about which problems you’re solving
Antonio B De Castro

Git-style branching for your database schema removes the scariest part of deployment
Antonio B De Castro

Copy-paste components you own beat npm packages you don’t
Antonio B De Castro

pgvector turns the world’s most trusted database into an AI-native data store
Antonio B De Castro

How containers went from ‘works on my machine’ to ‘runs everything everywhere’
Antonio B De Castro

When your framework, your hosting, and your funding all come from the same company
Antonio B De Castro

ripgrep, fd, bat, eza, zoxide—Rust rewrote your terminal and it’s better in every way