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 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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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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April 8

John and Rambo take a spontaneous deep-dive into XPC and the pros and cons of using it to modularize a Mac app. Also, what can be learned from looking at old code, comments on the latest Apple rumors, and designing a delicious dinner.

Sponsored by OWC: Get the new OWC memory and Accelsior 4M2 SSD for the 2019 Mac Pro now. Enter the Mac Pro Rack giveaway here.

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April 7

I still remember listening to podcasts on my first iPhone — the iPhone 3G — and being amused by the realistic-looking tape deck user interface that showed up while a podcast was playing. Shortly after, Apple started moving to what people used to call “flat UI.” For some, it meant iOS was losing some of its charm, while for others it was considered a welcome evolution.

If you’re one of those people who miss the old skeuomorphic design of iOS and its apps, or if you’re just someone who appreciates design and cares about the way an app looks and feels, today’s release of Cosmicast may be perfect for you.

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April 1

Deciding when to rewrite a piece of code, what makes Combine such a great way to do reactive programming in Swift, and the final part of our indie app development special series. Also, tips for coding beginners, Indie Support Weeks, and much more.

Sponsored by Setapp: Try Setapp with over 170+ Mac apps completely free for the first week.

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March 30

Adaptivity app now available as an universal purchase on iOS and macOS

One of the greatest challenges developers face when developing for Apple’s platforms today is adapting the layout of their apps to all available screen shapes and sizes. Most apps need to work from the iPhone SE and its 4-inch display all the way up to the 12.9-inch iPad Pro. With Catalyst, some apps also need to work well on the Mac, where the app needs to function in a small window all the way up to a full screen, which can be way larger than anything on iOS.

March 25

The indie app development special series continues, this week focused on business models and marketing, and again featuring tips and advice from a group of amazing guests. Also, adding cursor support to an iPad app, lots of game recommendations, our most embarrassing bugs, and… ARM Macs confirmed?

Sponsored by Setapp: Try Setapp with over 170+ Mac apps completely free for the first week.

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March 18

The new iPad Pro, native mouse pointer support in iPadOS, tips on working from home, app architecture and system design, picking the right technologies and dependencies for a project, and top tips on indie app development from Kaya Thomas, Casey Liss and Curtis Herbert. It’s the longest, most action-packed episode of Stacktrace that we have ever made!

Sponsored by Setapp: Try Setapp with over 170+ Mac apps completely free for the first week.

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March 11

Welcome to the first episode in a new mini-series about indie app development, featuring special guests from around the community! Besides your regular updates on the world of Apple (this time with a huge number of leaks and info about iOS 14 and new products), and what John and Rambo are up to, you’ll get to hear how three indie developers come up with ideas and organize the pre-production around their apps.

Sponsored by Setapp: Try Setapp with over 170+ Mac apps completely free for the first week.

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March 4

Websites hosted entirely on CDN, the flexibility of modern web development, how Rambo replicated the Apple Watch Breathe animation using SwiftUI, the power and potential of command line interfaces for iOS apps, and much more.

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February 26

John and Rambo are joined by app security expert Michael “Biscuit” Thomas on this special episode of the show all about iOS app security and encryption. Topics include how to build a threat model and identify attack surfaces, whether it’s worth to protect against Jailbreak-based app hacking, and much more.

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February 19

John and Rambo continue their adventures into building apps with SwiftUI, talk about the newly released Swift Playgrounds app for Mac, and discuss the dilemma of Apple promoting their own services across iOS. Also, unit testing, monetizing an app through donations, and much more.

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February 12

John and Rambo share their experiences of building apps using SwiftUI, talk about new Mac apps that they love, and discuss what the newly found references to AMD CPUs in macOS might mean. Also, animations, Nintendo 64 copy protection, and thoughts about being a “digital nomad”.

Sponsored by Chargeasap: Preorder the new Flash 150W USB-C Powerbank for $139  (Reg $299) & enter our iPhone 11 giveaway.

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February 6

A first look at Xcode 11.4, iOS 13.4, and the suite of betas that Apple released this week. Also, the power of declarative UIs, whether a spiritual successor to AirPower might be in the works, and John’s recipe for oven-baked potatoes.

Sponsored by Hyper: Preorder the new HyperDrive GEN2: Next Generation USB-C Hub for $59 (40% off the expected retails price). Learn more about our Mac Pro giveaway.

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