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

Custom iterators in Go without channels or callbacks—the language just got expressive
Antonio B De Castro

Anthropic’s model handles code context better than anything I’ve used—here’s why that matters
Antonio B De Castro

Cloudflare Workers, Deno Deploy, and Vercel Edge Functions are rewriting the deployment playbook
Antonio B De Castro

Ollama + Open WebUI + Docker Compose = a full AI development stack on your laptop
Antonio B De Castro

Faster installs, strict dependency resolution, and disk space savings that actually matter
Antonio B De Castro

Leptos, Axum, and the emerging Rust web ecosystem deserve your attention
Antonio B De Castro

SSE does 80% of what WebSockets do with 20% of the complexity
Antonio B De Castro

WASI preview 2, the component model, and real production deployments
Antonio B De Castro

Infrastructure-as-actual-code beats infrastructure-as-configuration every time
Antonio B De Castro

The Python framework that treats type hints as a feature, not decoration