About the Author

Guilherme Rambo

@_inside

Guilherme Rambo is a Mac and iOS developer based in Brazil. Known for discovering Apple’s secrets and analyzing leaks, he writes about his discoveries on 9to5mac.

If you have any tips or suggestions, contact him at guilherme@9to5mac.com

Yesterday

What differentiates server-side and client-side development, Tim Cook’s testimony in front of the US Congress, the new iMac, Rambo’s secret new project, and more on John’s not-so-secret use of SwiftUI to build games.

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July 29

Is FaceID coming to the Mac, what could a Swift version of async/await end up looking like, and what makes SwiftUI a nice fit for game UI development?

Sponsored by iMazing: Get 30% off iMazing, the most popular all-purpose iPhone and iPad manager for Mac and PC.

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July 22

Rambo shuts down two of his projects and battles Dark Mode on macOS, John re-evaluates his goals and work priorities, and the two discuss the big Twitter hack, engineering management, and whether Apple has changed their strategy around when to ship new features.

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July 15

After an accidental deep dive into SwiftUI, John and Rambo discuss the recent issues with Facebook’s iOS SDK and whether Apple should force developers to adopt more platform features. Then, this episode’s actual deep dive, into backend-driven UIs.

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July 8

After a bit of speculation as to whether or not Apple will ship this year’s iPhone without a charger, John and Rambo go on a deep dive into SwiftUI state management, and discuss various approaches for sharing code between an app and an extension.

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July 2

The macOS Big Sur redesign doesn’t mean the end of the world, right? Or does it? John and Rambo discuss the reveal of Apple Silicon, macOS 11, iOS apps coming to the Mac, and much more — all during a recording session stretched out over two days in the middle of a Brazilian lightning storm.

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June 30

If you are an iOS developer, you have two options when testing your apps during development: Use real devices, or the iOS Simulator that ships with Xcode. With the large amount of device shapes and sizes these days, it’s not feasible for a developer to have all of them, and that’s when the Simulator comes in handy.

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June 24

On this WWDC20 special, John and Rambo start diving into the main announcements from Apple’s conference, focusing on iOS, App Clips, Widgets, Siri, Maps, watchOS, AirPods and iPadOS.

Sponsored by MacStadium: Get 50% off the first six months of a Mac mini subscription with code WWDC2020.

Sponsored by CleanMyMac X: Get CleanMyMac X 30% off valid until July 5.

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June 17

John and Gui Rambo share their first impressions of Apple’s WWDC20 opening keynote, as well as the Platforms State of the Union session. This is the WWDC by Sundell & Friends podcast, subscribe to our daily show on the website.

Did Apple’s first ever online keynote live up to our expectations, which of the announcements were the most exciting, and what technologies are we looking forward to dive deeper into during the week? Those are just some of the questions that we’ll discuss on this first episode of the WWDC by Sundell & Friends podcast.

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On this special episode of the show, John and Rambo are joined by Ellen Shapiro and Kaya Thomas for the grand WWDC20 Keynote Poker game. Bets, speculations, and discussions around what Apple might release next week at the 2020 edition of WWDC.

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June 10

A deep dive into the iOS background operations model and how it could potentially be improved, rumors about both ARM Macs and a new iMac design being unveiled at WWDC20, and a discussion around designing custom systems for apps. That, and your regular updates from both John and Rambo, on this week’s episode of Stacktrace.

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June 3

Preparations for WWDC, a look at the first COVID-19 exposure notification apps powered by Apple and Google’s system, and a deep dive into the world of Reactive Programming through frameworks like RxSwift and Combine. Also, will cross-platform technologies like Flutter ever take over native iOS development?

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May 27

What could an iPhone without any ports look like, and is it likely that Apple would ever adopt USB-C for the iPhone? Also, Mac development, using multiple programming languages, sharing utilities between projects, and much more.

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Sponsored by ZeroSSL:  A new, completely free and trusted certificate authority and SSL Platform, aiming to make it easy and extremely affordable to create SSL certificates.Try ZeroSSL today for free.

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May 20

This week, John and Rambo go on a deep dive into the responder chain and how UI events are propagated on Apple’s platforms. Also, SwiftUI vs Catalyst, Apple’s mysterious new QR codes for AR, and a visit to the Sundell R&D division.

Sponsored by Bitrise: iOS Continuous Integration and Delivery for building better applications, faster. Sign up for free and learn more here

Sponsored by Clubhouse: the collaborative home for modern software teams.

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May 14

With many of us working at home right now, being able to communicate with other people living in the same household about our current availability is something we have to deal with. That’s what the “Oh Bother” app, released today, promises to help its users with.

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May 13

The recent Facebook SDK crashing incident leads John and Rambo into a deep-dive on third party SDKs and various ways to handle them. Also, new thoughts and details on the rumored AirPods Studio headphones, how writing about a topic can make you re-examine your opinions on it, and the launch of FusionCast.

Sponsored by Bitrise: iOS Continuous Integration and Delivery for building better applications, faster. Sign up for free and learn more here

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May 6

John automates the deployment of his website, which just celebrated its third birthday (or is it “anniversary”?), Rambo is about to launch a new app, and the two go on a deep dive into the iOS 13.5 beta and Apple + Google’s “Exposure notification” system for tracking the spread of COVID-19.

Sponsored by Bitrise: iOS Continuous Integration and Delivery for building better applications, faster. Sign up for free and learn more here

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April 29

John and Rambo return to the topic of app architecture, this time to discuss how to build scalable code bases using the MVC design pattern, and also talk about what Apple’s pro-level apps (including Xcode) might look like if ported to the iPad.

Sponsored by Disco Elysium: An award-winning and groundbreaking role-playing game, now available on Mac. Get 25% off until May 1 on Steam.

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April 22

John writes Javascript encryption code and reviews Apple’s new Magic Keyboard for the iPad Pro, Rambo reveals an exclusive new AirBuddy feature coming in version 2.0, and the two talk about the new iPhone SE, Apple’s upcoming remote accessibility event, and much more.

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April 15

John and Rambo speculate about why HomePod is now running tvOS, talk about SwiftUI view architecture and previews, and go on a deep-dive into Bluetooth Low Energy and how Rambo ported AirBuddy to the Raspberry Pi.

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