HealthKit in iOS 27: Workout Zones, New Types
iOS 27 makes workout heart-rate zones first-class HealthKit data via HKWorkoutZoneConfiguration and HKWorkoutZoneGroup, plus new menopausalState types.
AI & TechnologyWriting
Thoughts on design, development, AI infrastructure, and building products.
SwiftData in iOS 27: Observation and History
iOS 27 gives SwiftData first-class change observation with ResultsObserver, persistent-history observation with HistoryObserver, and codable attribute storage.
AI & TechnologyRealityKit And Reality Composer Pro 3 In 2026
WWDC26 matured Apple's spatial pipeline: RealityKit lighting and cloth, plus a standalone Reality Composer Pro 3 with live preview and Xcode plug-ins.
AI & TechnologyYour Agent Has Two Untrusted Inputs
AI agents have two untrusted inputs: code the model writes and tool output it reads. One now has a real WASM sandbox; the other, MCP tool poisoning, does not.
AI & TechnologyApple's Translation Framework: Free, On-Device, and Sharper Than It Looks
Apple's Translation framework: free on-device translation via translationPresentation and TranslationSession, plus the offline-download edges demos skip.
AI & TechnologyEngineering Philosophy: Raj Reddy, Technology for the Bottom Billion
Raj Reddy pioneered machines you can talk to -- speech recognition, the blackboard model -- then aimed the most advanced AI at the world's poorest, not its richest.
Engineering & CraftEngineering Philosophy: Joanna Rutkowska
Joanna Rutkowska built Qubes OS on reasonable paranoia: you cannot make software bug-free, so assume compromise, distrust the infrastructure, and isolate the blast radius.
Engineering & CraftEngineering Philosophy: Sophie Wilson
Sophie Wilson designed the ARM instruction set -- now in nearly every phone on Earth -- with a tiny team and a ruthless RISC efficiency that made low power almost an accident.
Engineering & CraftMLX on Apple Silicon: When You Need Your Own Model, Not Apple's
Foundation Models gives you Apple's sealed on-device LLM. MLX runs your own: quantized open-weight models and LoRA fine-tunes on Apple Silicon.
AI & TechnologyEngineering Philosophy: Kyunghyun Cho
Kyunghyun Cho let models learn their own control structure -- gated memory in the GRU, soft alignment in attention -- and paired it with honest, reproducible science.
Engineering & CraftEngineering Philosophy: Radia Perlman
Radia Perlman invented the Spanning Tree Protocol and built networks that heal themselves -- loop-free, self-stabilizing, and correct even when nodes lie. Robustness as a first principle.
Engineering & CraftThe iOS 26 Widget Surface: One App Intent, Many Places
iOS 26 widgets, Control Center controls, and Live Activities are all App Intents surfaces. One intent powers buttons, controls, and Live Activity actions.
AI & TechnologyExternal Publications
Technical writing at Introl
Local LLM Hardware Pricing Guide 2025
Comprehensive hardware recommendations and cost analysis for running large language models locally.
H100 vs. H200 vs. B200: Choosing the Right NVIDIA GPUs for Your AI Workload
GPU selection guide comparing NVIDIA's latest datacenter accelerators for different AI workloads.
TPU Architecture: Complete Guide to Google's 7 Generations
Deep technical dive into Google's Tensor Processing Unit evolution from TPUv1 to TPUv5.
GPU Memory Pooling in Multi-Tenant Kubernetes
Resource sharing strategies for GPU clusters in containerized environments.
Ray Clusters: Distributed AI Computing Infrastructure
Guide to building and managing distributed AI computing with Ray framework.
DeepSeek V3 Open Source AI Cost Advantage
Analysis of open source LLM economics and DeepSeek's competitive positioning.
NVIDIA Vera Rubin GPU 600kW Racks 2027
Future datacenter power requirements and NVIDIA's next-generation GPU roadmap.
SMR Nuclear Power for AI Data Centers
Small modular reactor solutions for powering next-generation AI infrastructure.
DeepSeek MHC Architecture Breakthrough
Technical analysis of DeepSeek's Multi-Head Compression architecture innovations.