Articles
Notes and write-ups on engineering, security and building products.
GPT-6 Astra: what actually changes for engineers
A 1M-token context, real gains on agentic benchmarks, and five times the price per token. Which numbers to trust, and what to change in your own systems.
Artificial IntelligenceLLMSoftware ArchitectureCost Engineering7 min readWhy System Design matters even more in the age of AI
AI made code faster to produce, but it did not replace decisions about scale, security, cost, failure, and evolution. A visual and interactive introduction to system design.
System DesignArchitectureArtificial IntelligenceSoftware Engineering8 min readApplying NIST CSF 2.0 to web applications and SaaS platforms
A technical profile for applying NIST CSF 2.0 to multi-tenant SaaS: governance, asset inventory, tenant isolation, secure delivery, detection, response, recovery and audit evidence.
CybersecurityNIST CSFSaaSAppSec13 min readFixing a silent buffer-size truncation in Apple's swift-system
My first merged contribution to Apple's swift-system: a correctness fix for a silent buffer-size truncation in the Windows pread/pwrite adapters, why it was dangerous, and how I closed it.
SwiftOpen SourceWindowsSystems Programming6 min read