iPhone Duo went on sale yesterday, and the people who just paid $1,999 for a phone are exactly the people who pay for apps. Someone turned Apple's developer talks into 9 free skills for Claude, so I went through all of them for you. Only three fixes really matter: rebuild on the new SDK, ask how much space you have instead of "phone or iPad", and stop doubling the left margin, because the camera sits on one side now. Comment "DUO" and I'll send you the skills. #claudeai #vibecoding #iosdev #buildinpublic #indiehackers

If you built an app with Claude, listen up. Because Apple just started selling a $2,000 iPhone that folds in half. And the people who pay two grand for a phone are exactly the people who pay for your apps. Someone turned all of Apple's developer talks about it into nine skills for Claude. And I went through every single one so you don't have to. And only three things really matter. And the last one is a bug almost every AI-built app has.

Right now, your app opens. But on the big screen, it sits in a phone-sized box. And Apple calls that an app nobody thought about. So fix one. Tell Claude to rebuild it on the iOS 27.1 SDK, and it finally fills the screen. Fix 2.

Fix 2. And Claude gets this wrong all the time. Stop asking if it's a phone or an iPad, because the duo is both. So ask how much space you have instead. And Fix 3. The camera sits on one side now. So if your code takes the left margin and doubles it, your buttons slide right under the camera, and your website has the exact same bug. Comment D.U.O., and I'll send you the skills.

Claude does the rest.

Claude does the rest.