macOS 27 Golden Gate Is Out: What Changes for Developers
macOS 27 Golden Gate shipped September 14, Apple silicon only: Rosetta's last general release, installers defaulting to arm64, and the GA notes to read.
DevelopmentWriting
Thoughts on design, development, AI infrastructure, and building products.
iOS 27.0 Release Notes: Deprecations, Breaks, and Fixes
iOS 27.0 (24A437) shipped September 14. The notes, read for developers: 11 deprecations, what fires when you build with the 27 SDK, and one fix I verified.
DevelopmentXcode 27 Is Out: Requirements, Targets, and What Broke
Xcode 27 (27A266a) shipped September 14: macOS 26.6 and Apple silicon required, Swift 6.4, higher deployment floors, ld64 gone, PreviewProvider deprecated.
Developmentarm64e.x1: Apple's Checked Pointer Arithmetic Slice
iOS 27 RC notes add arm64e.x1: checked pointer arithmetic (CPA2) on A20 Pro, M6, and S11. What clang emits, the four Xcode switches, and the hardware list.
DevelopmentiPhone Duo, Day Two: The Assets That Appeared in 24 Hours
Apple's iPhone Duo bezel pack and App Store Connect's screenshot sizes, plus mock-ups, SwiftUI examples, agent skills, and questions from the first 24 hours.
Apple EcosystemFive-Second Heart Rate: What Changes for HealthKit Apps
Apple Watch Series 12 and Ultra 4 read heart rate every five seconds and HRV as often as every five minutes. What Apple said, what reaches HealthKit, and fixes.
Apple EcosystemiPhone Duo for Developers: The 1.42 Problem and the SDK Gap
iPhone Duo for developers: inferred display points from App Store Connect screenshots, two display shapes, Split View, Touch ID, SDK timing, and six Tech Talks.
Apple EcosystemApple's September 2026 Event, Verified on Apple's Pages
Apple's September 9, 2026 keynote as it happened: each announcement logged as it landed, with the Apple page it was checked against, plus the developer drops.
Apple EcosystemDesigning for iPhone Duo: What Moves, Splits, and Stays
Apple's iPhone Duo design guide and three Tech Talks, read as rules: two size classes instead of poses, displacement at the fold, arrangements, and side bars.
Design & UXInstall and Update Codex CLI: Mac, Linux, Windows
Every way to install, update, pin, and uninstall the OpenAI Codex CLI -- the install script, npm, Homebrew, winget -- on macOS, Linux, WSL, and Windows.
AI & TechnologyClaude Code Auto Mode Is Not a Security Boundary
Anthropic closed a working auto-mode bypass as Informative: the classifier is best-effort, not a guarantee. What actually bounds a coding agent.
AI & TechnologyAnthropic Python SDK 1.0 Migration: By Hand or Claude Code
Migrate anthropic 0.x to 1.0: httpx2, async raw responses, Bedrock region. By hand from MIGRATION.md or with Claude Code's /claude-api upgrade python.
AI & TechnologyExternal Publications
Technical writing published 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.
