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

The framework that turned type hints into a killer feature is reshaping the ecosystem
Antonio B De Castro

Extensions, conferences, and a contribution culture that proprietary databases can’t replicate
Antonio B De Castro

Rust’s ecosystem grew up—web, CLI, WASM, and embedded are all production-ready
Antonio B De Castro

The typed superset isn’t a superset anymore—it’s the language
Antonio B De Castro

Prompt engineering, RAG architecture, and agent orchestration aren’t optional anymore
Antonio B De Castro

DHH’s deploy tool is suspiciously simple—and that’s the point
Antonio B De Castro

Multi-page apps with progressive enhancement are back—and they never should have left
Antonio B De Castro

Caching, pub/sub, and session storage—Redis is the glue holding distributed systems together
Antonio B De Castro

Three years later, most teams running K8s would be better served by simpler alternatives
Antonio B De Castro

Terminal-native agentic coding that reads, writes, runs, and iterates—this is actual pair programming