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Developing for the iPhone Duo ⟡ React 19.3 Is Here ⟡ Pi announces Radius ⌁ Syntax Weekly ⌁

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 🔥 Be the ~19,500th person to join our super tasty newsletter https://bit.ly/syntax_snackpack


00:00:00 Intro
00:01:08 React 19.3
00:05:39 Pi announces Radius
00:15:36 iPhone Duo Initial Reactions
00:22:45 Developing for the iPhone Duo
00:32:31 Syntax Meetup in SF
00:33:41 Tailwind Labs is joining Shopify
00:35:59 Native is the Future of Mobile at Shopify
00:40:46 Herdr remote agents
00:46:34 Homebrew 7 Released
00:51:17 Meta Muse AI Agent
01:00:40 Scott's Switzerland Trip
01:07:43 Mic FX from Teenage Engineering
01:11:10 Three.js conference Badge
01:13:53 Don't let anyone take away your big box of cables
01:16:49 Aerospace Tiling Manager
01:24:50 Scott's new backpack
01:27:22 Claude, change this button to blue
01:32:00 Knap markdown template language

React 19.3 | https://react.dev/blog/2026/09/09/react-19-3 Pi Announces Radius | https://radius.earendil.com/docs iPhone Duo | https://www.apple.com/newsroom/2026/09/apple-unveils-iphone-duo/ Device Posture API | https://developer.mozilla.org/en-US/docs/Web/API/Device_Posture_API Syntax Meetup in SF | http://syntax.fm/meetup Tailwind Labs is joining Shopify | https://tailwindcss.com/blog/tailwind-is-joining-shopify Native is the Future of Mobile at Shopify | https://shopify.engineering/back-to-native Herdr remote agents | https://herdr.dev/docs/connecting-machines/ Homebrew 7 | https://brew.sh/2026/09/13/homebrew-7.0.0 Meta Muse AI Agent | https://ai.meta.com/muse/ Mic FX from Teenage Engineering | https://teenage.engineering/guides/ep-2350 Three.js conference Badge | https://x.com/cassiecodes/status/2097958455092904218 Don't let anyone take away your big box of cables | https://blog.jim-nielsen.com/2026/hands-off-my-cables/ Aerospace Tiling Manager | https://github.com/stolinski/aeropeek Claude, change this button to blue | https://opusfived.dev/ Knap markdown template language | https://knap.md/