Jeroen Leenarts

AppForce1 Worklog

Bi-Weekly or weekly podcast. I'm going to share my journey as an iOS developer in real-time. The wins, the struggles, the lessons learned, and the code that actually works. No fluff, no corporate speak, just honest developer-to-developer conversations.

Author

Jeroen Leenarts

Category

Technology

Podcast website

appforce1.net

Latest episode

Sep 29, 2025

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Episodes

Special: Daniel Devesa Derksen-Staats 14.01.2021

Send me a text Daniel works at Spotify. Specifically on the Spotify Kids app. He has written a book on accessibility for iOS. Daniel took a very deliberate approach to where he wanted to work in his career. Developing Accessible iOS apps ( related code samples ) Daniel on Twitter Daniel on Medium Join me in Amsterdam for Do iOS 2025 , tickets and details available now. Lead Software Developer &nbs...

Big big plans 11.01.2021

Send me a text A lot has happened this week, the iOS community is writing a lot more articles compared to 2 weeks ago. So let's dig in. Articles, training, coaching… this episode has it all. News Creating Multiple Scenes in a SwiftUI App Create a dynamic onboarding UI in Swift How to select images using PHPickerViewController with SwiftUI Supplementary views with Compositional Layout and Diff...

Leo G Dion, podcast creator and self employed Swift and iOS developer 07.01.2021

Send me a text Leo is BrightDigit. He runs the podcast Empower Apps. Leo appears on my episode and I appear on his. Have a listen to his episode featuring me. I was able to listen to a preview and I think it turned out great. I will be on Leo's feed on January 8. Direct link to Leo's episode with me: https://www.empowerapps.show/76 Empowered Apps podcast Bright Digit MistKit OrchardNest...

2021, we made it! 04.01.2021

Send me a text Let’s learn more on SwiftUI and Combine this year. A lot has happened in 2020. A lot of bad but also a lot of good. Let's hope that 2021 is the turnaround year we all hope it will be. News: Getting started with UIKit in SwiftUI and vice versa App architecture basics in SwiftUI, Part 1 Detailed look at the NSCollectionLayoutGroup When to use Defer in Swift 10 things iOS develope...

Brenden Kumarasamy, master trainer and coach on presenting and public speaking 31.12.2020

Send me a text A bit of a different special today. I wanted something a bit less technical. New year is upon us. And with that new year resolutions are a thing. Mine is to further improve my public speaking. In my search for content I came acros Brenden. And he has an awesome collection of helpful videos on YouTube. Brenden coaches clients individually as Master Talk, but he brings all his experie...

Learning about Swift language features 28.12.2020

Send me a text Coaching is taking off in 2021. Till that day, let's relax and learn as much as we can. About Swift language features for example. Enjoy the company we can have and let's look forward to a great new year. Free of restrictions and global troubles like we had in 2020. News: Big Nerd Ranch: PLCrashReporter / PLCrashReporter: Part 1 / PLCrashReporter: Part 2 Launching an Indie...

Paweł Madej, a pharmacist retrained to iOS developer 24.12.2020

Send me a text Paweł is a person with an interesting journey. If you are considering switching iOS development careers, Paweł has done just that. A pharmacist who switched to iOS software development. In a timespan of two years Paweł was able to make the change. Again two very familiar names will be mentioned. Paul and Donny. CodeConf app Family Graves Map Books to learn from Extra help from Donny...

Coaching for free 21.12.2020

Send me a text A big shoutout to #iOSdevhappyhour. I had a great time and it resulted in a big idea with me. I hope it all works out and that I can actually do my planned coaching sessions. News: Apple: App Clips now available Book: Thinking in SwiftUI Book: Yuri's GumRoad DevUtils.app AWS Amplify and SwiftUI Github Actions to compile Xcode projects DI in Swift ExpressibleBy- Loops in Swift D...

Paul Hudson, creator of Hacking with Swift 16.12.2020

Send me a text Paul "Hacking with Swift" Hudson. Paul is genuinly a nice person. And by applying that aspect of his personality combined with a passion for writing about what he loves, a recipy for success. In this episode Paul and I dig into his origins. Join me in Amsterdam for Do iOS 2025 , tickets and details available now. Lead Software Developer   Learn best practices for bein...

Restrictions allow you to break free 14.12.2020

Send me a text And we are already on my ninth regular episode. I'm now getting the hang of podcasting more and more. Next step is voice profiling and using some filtering to make myself sound better. Another packed episode with some great updates. Enjoy! 200 weeks of Swift News: Practical Core Data Xcode 12.3 Apple Silicon Mac mini CI Showing Maps in Widgets Dynamic dark mode images at runtim...

Ellen Shapiro, Apollo's GraphQL SDK developer for iOS 09.12.2020

Send me a text Ellen… Ball of energy. I did my best to keep our interview on track. But Ellen has so much to say. We talk about work, lessons learned. Going to LA, Europe and Wisconsin. All because of the code, love and why wouldn't you? It was great talking with Ellen, partly due to that... Boy the edit  was a beast. Please rate me on Apple Podcasts. Book: The Manager's Path Spot Hero B...

So little time, so much to do 07.12.2020

Send me a text A episode on the shorter side. Very busy with wrapping up the year at work, editing episodes, writing a book and staying healthy. Enjoy this week's episode and make sure to sign up for the newsletters I mentioned. News Apple: Mac available on AWS EC2 Reducing Memory Footprint When Using UIImage App Launch Time: 7 tips to increase performance Observing Combine publishers in Swif...

Daniel Steinberg, extraordinary trainer on Functional Swift and SwiftUI 03.12.2020

Send me a text In this special Daniel Steinberg and me talk about his history, him helping people, Daniel's hobbies and a whole lot more. Links on Daniel himself: DimSumThinking Swift Kickstart SwiftUI Kickstart Functional Programming Kickstart Combine book and Bread book? Keep an eye on Daniel's newsletter . Dear Elena People mentioned: Donny Wals Combine book use code "appforce1&q...

Books, more book 30.11.2020

Send me a text Book, lots of books this week. Daniel Steinberg interview live on thursday and a big list of twitter mentions this week. Some great articles. And I think I am getting less nervous now. :) Go go Craig Clayton: SwiftUI Projects Hassan Osman: Writer on the side News: Apple: App privacy questions What It Took to Get FoodNoms Ready SwiftUI’s Grid Views Event-driven generic hooks for Swif...

Pedro Piñera, maintainer of Tuist.io 26.11.2020

Send me a text Pedro Piñera. A software developer working mostly on development tools at Shopify in Berlin, Germany. He spends his days improving the development tooling for his peers at Shopify. In his spare time, he works on tuist.io, a tool to make maintaining Xcode projects everyone's task by describing them using a plain language. 8fit SoundCloud Tuist.io Podcast: The Changelog Book: Ref...

Shut up and listen 23.11.2020

Send me a text Lots of stuff going on right now, planning a bunch of interviews. Doing recordings, decided to take my newsletter a bit more serious. And my recommendation for this week "Shut up and listen" if, for example, you want to be a better team player. Book: Junior to Senior by Yuri Karabatov News: Apple Small Business Program Apple: Subscription offer codes PSPDFKit: PDF to an Im...

Ben Scheirman, creator of NSScreencast.com and CombineSwift.com 19.11.2020

Send me a text Ben Scheirman. An experienced software developer from Houston, TX. He spends most of his time these days writing Swift and Ruby and recording screencasts. You might know him from NSScreencast.com NSScreencast.com ColdFusion My professor, my mentor Alex Honnold and Combine learning curve Combine Swift objc.io Hacking with Swift Book: Deep Work So Good, they can't ignore you Venk...

Late night learning 17.11.2020

Send me a text Welcome to my 5th episode. Big Sur launched and people are spending more and more time on SwiftUI and Combine. I also have my first listener question. News: Big Sur launched: OCSP failed OCSP Apple's response Paul Hudson about page LLDB JSON dumping MVVM and SwiftUI Multi cursor editing URLCache Monday morning tweet by Donny iOS Conf SG Join me in Amsterdam for Do iOS 2025 , ti...

Pedro Carrasco, organizer of SwiftAveiro, iOS developer on Todoist 12.11.2020

Send me a text Pedro is a Portuguese iOS Engineer since February 2017. He studied at Instituto Superior de Engenharia do Porto. He is an avid OSS enthusiast and contributor. Helps by sharing, learn by what’s shared. He is a member of SwiftAveiro’s organization, where around 250 iOS Engineers have gathered to learn in the past three years, and CocoaHeads Porto, the first CocoaHeads meetup in Portug...

Silicon interlude 09.11.2020

Send me a text Welcome to my 4th episode. We are in a bit of a quiet time due to today's Apple event "Back to the Mac". Still there are some very interesting articles, NSSPain, I want to pitch you on a new podcast section I am working on and I do my first sponsor read. News: Apple Event: One More Thing SwiftUI and UIKit interoperability UICollectionView List with Interactive Custom...

Donny Wals, author of Practical Combine and Core Data, iOS developer at Disney Plus 05.11.2020

Send me a text Donny is a curious, passionate iOS Developer from the Netherlands who loves learning, sharing knowledge and programming in general. He has experience with several technologies like Python, SQL, PHP, Javascript but iOS has been his passion for a while now. Donny Wals The Do iOS birdie Beamer specs, check the DO iOS video Disney Streaming Services I'm in App The A10 ring Packt pu...

Learning every day 03.11.2020

Send me a text Welcome to my 3rd episode. The focus of this episode will be a bit more on basic Swift related items. I will also mention a great online event next month you should check out. CocoaHeadsNL has released the video from their October meetup with Donny Wals. I have some great news about upcoming interviews I will be releasing in the coming weeks. Monday morning tweet Mobile Optimized 20...

Antoine van der Lee, author of SwiftLee blog and iOS dev at WeTransfer 29.10.2020

Send me a text Antoine is an iOS developer with a good following on Twitter. He often helps CocoaHeadsNL when he can. He works for WeTransfer, writes on his blog and recently launched version 3 of RocketSim. Antoine van der Lee Chickens Antoine's blog WeTransfer More on Antoine's blog RocketSim Antoine as a DJ and a public speaker First experience at CocoaHeadsNL Antoine at Do iOS "...

Something special soon 27.10.2020

Send me a text Welcome to my 2nd episode. The focus of this episode will be a bit more on SwiftUI related items. I will also mention a great online event next month you should check out. CocoaHeadsNL has announced their november and december planning. News: Home Screen Quick Actions — SwiftUI 2.0 Getting started with the Combine framework in Swift The magic of redacted modifier in SwiftUI Updating...

AppForce1 is alive 20.10.2020

Send me a text Welcome to my 1st episode. This is the first episode of AppForce1 podcast. I will be learning more and more with every new episode, any suggestions, advice or sources of iOS developer related news are very welcome. These are the links of this week: Offer your apps for pre-order even earlier - News - Apple Developer What is @escaping in Swift closures | Sarun iPhone 12 Screen Sizes O...

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