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01Writing

Notes from the build.

What I learn shipping mobile apps — architecture decisions, App Store review, performance work, and the mistakes worth writing down.

RSS
6 min read

Don't Let an AI Tell You the Beta Number

Aggregators and AI summaries confidently invent Apple build numbers. Here's a primary-source watchlist for iOS teams, and how to verify before you schedule.

  • iOS
  • App Store
  • Shipping
6 min read

Xcode 27's Coding Agents: ACP, MCP, and Skills

Xcode 27 embeds coding agents via the Agent Client Protocol, MCP servers, and plugin-packaged skills. What's stable, and what the upgrade actually costs.

  • Xcode
  • iOS
  • AI
6 min read

iOS 27 Beta 5: Your Real Deadline Is August

Apple seeded iOS 27 developer beta 5 on August 10, 2026 and public beta 3 the next day. What to regression-test before the September launch.

  • iOS
  • SwiftUI
  • App Store
2 min read

What App Store review actually rejects

After years of submissions the same handful of rejection reasons keep coming back. Here is what genuinely gets flagged, and how to avoid each one.

  • iOS
  • App Store
  • Shipping