1040: Developing for the iPhone Duo

Syntax - Tasty Web Development Treats · Sep 21, 2026 · 1h 33m

Scott, Wes, and CJ break down developing for the iPhone Duo with the Device Posture and Viewport Segments APIs, plus the React 19.3 release and Pi’s new Radius platform. Also on deck: Tailwind joining Shopify, Shopify going back to native, Homebrew 7, Aeropeek, and Meta’s Muse Agent. Show Notes 00:00 Welcome to Syntax! 01:05 React 19.3 05:30 Pi announces Radius 15:26 iPhone Duo Initial Reactions iPhone Duo for developers 22:35 Developing for the iPhone Duo Viewport Segments API Device Posture API WebKit Standards Positions Jen Simmons’ post 32:16 Syntax Meetup in SF 32:52 Brought to you by…