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

Double framing things 12.04.2021

Send me a text Lots going on, skipped a week but published something cool. Some reflections on me, my home and other things. And lots of cool articles. Enjoy! This week's links: An introduction to working with Codable in Swift – Donny Wals Category: Codable – Donny Wals LostMoa - Bringing Polymorphism to Codable Instantly parse JSON in any language | quicktype Designing API using Combine fram...

Malin and Kai, creators of Orbit. 05.04.2021

Send me a text Malin and Kai, work and live together in Vancouver Canada. Their company is called Triple Glazed Studios. Their main product is called Orbit. They are two very enjoyable people to talk with and they have travelled around the world together. Listen in on our conversation and hear how they got started in tech and how they ended up where they are right now. Triple Glazed Studios Orbit...

Charlie Chapman, creator of Dark Noise app and Launched podcast. 01.04.2021

Send me a text Charlie is from a .net background. He switched into iOS app development and needed a practice project to work on. Dark Noise was born. Talk about an understatement, Dark Noise a "practice project". Charlie's website The statistics about Dark Noise launch Dark Noise app Overviewer app Join me in Amsterdam for Do iOS 2025 , tickets and details available now. Lead Softwa...

Monday evening recording monster 29.03.2021

Send me a text Hey there, the more I think about my podcast pivot, the more it grows on me. I look forward to starting work on it and see how it turns out. Meanwhile I am looking for waya to tune down on the monday evening podcast recording. Not sure yet how to do that, but it will happen at some point. Using Combine’s futures and subjects | Swift by Sundell Xcode Tips 💡 | The more you know…  con...

Allen Whearry, self taught iOS developer working at Yelp. 24.03.2021

Send me a text Allen Whearry is the person organizing #iOSDevHappyhour. You should look that one up on Twitter if you haven't. Allen had an interesting journey into tech, he started with a psychology major and went through several sales roles before diving into tech. On this episode Allen and I take you through Allen's backstory. Join me in Amsterdam for Do iOS 2025 , tickets and details...

CLI, oh my... 22.03.2021

Send me a text I launched. Wow! Also created a sweet little CLI util I am going to use on the next Swift Weekly Brief. After my book launch it is time to gather feedback and iterate a few times. Oh and let's not forget to also mention that rotten roof. Filip's Němeček iOS chat with me. Donny monday morning tweet Chat with Jeroen Leenarts | iOS Chats by Filip Němeček Using pipes in Swift...

Nedim Fakic, a very young aspiring developer. 18.03.2021

Send me a text Nedim is intresting. He is young. Only 17 years old when I interviewed him. He still has to properly start his career as a software developer. But even at his young age, he sounds to be ready to take on the world. Please rate me on Apple Podcasts. Join me in Amsterdam for Do iOS 2025 , tickets and details available now. Lead Software Developer   Learn best practices for being a...

To pivot or not to pivot 15.03.2021

Send me a text A bit more personal stuff in this episode. Besides the regular articles I want to share with you my thoughts on a book launch, Swift Weekly Brief and the future of my podcast. This is the time to weigh in your thoughts. Also listen in for a special present I packaged into this episode. Memory layout in Swift - The. Swift. Dev. Randomness in Swift: Comprehensive overview | Filip Něme...

Jeroen Willemsen, principal security consultant at Xebia 11.03.2021

Send me a text Jeroen Willemsen and I worked together on a security related mobile networking SDK. Based on that working history and Jeroen's work on the OWASP MSTG I wanted to get Jeroen on my podcast to talk about how to get started with mobile security testing on iOS. Topics mentioned in the episode: OWASP MSTG on Github OWASP MASVS on Github MSTG & MASVS info on owasp.org Join me in A...

Tearing the house down… 08.03.2021

Send me a text Home remodel is upon my family. A lot of stuff planned, did some pre-recording. So no worries. There will be fresh content while this place is in shambles. Vincent's YouTube channel Swift Weekly Brief newsletter Exploiting String Interpolation For Fun And For Profit | Dave DeLong UIMenu: Comprehensive guide | Filip Němeček Be careful with Obj-C bridging in Swift Statically-type...

Vincent Pradeilles, Worldline employee by day, rising YouTube star by night. 05.03.2021

Send me a text Here's to Vincent, he started a YouTube channel right about when I uploaded my very first episode. March 3 2021, he passed 2000 subscribers. And today, on March 5 we record for my podcast to celebrate this event. Vincent started with YouTubing due to the whole pandemic thing. This is one example of this horrible world event being an example of starting change in one iOS develop...

Daniel Jalkut, podcast host and business owner. 04.03.2021

Send me a text Daniel Jalkut owns and runs Red Sweater Software. He also hosts the Core Intuition podcast together with Manton Reece. Daniel was an Apple employee at some point during his career. In this episode we go through his experience starting and growing as a software developer. Links from this episode: Red Sweater Software Core Intuition Podcast Micro.blog by Manton Reece Do iOS conference...

You get to launch, you get to launch, everybody gets to launch! 01.03.2021

Send me a text An announcement about another newsletter this week. A few interesting articles. Lets not forget aSync/aWait. But most of all… a whole lot of people are launching things this week. GraphQL in Swift | Swift with Majid Custom HUDs in SwiftUI | Five Stars How-to: Create a zip file on iOS using Swift without 3rd party dependencies | Recoursive Corner Radius, Shadows, and Borders [View, B...

Anastasiia Voitova, Vixentael, security software engineer at Cossack Labs. 24.02.2021

Send me a text Anastasiia and I had an awesome chat about her work as a head of customer solutions and security software engineer at Cossack Labs . The conversation we had really reflects the personality of Anastasiia. She is always very open and willing to share her deep knowledge on security related topics. Cossack Labs ,  Anastasiia's place of work. Anastasiia on twitter . Most often she u...

Say you know you don't know… 23.02.2021

Send me a text News of the week, an update from Sam about the second round in his first interview experience. Some great new stuff on Donny Wals' monday morning tweet. This week Using compositional collection view layouts in iOS 13 – Donny Wals Dive into CFRunLoop | RY 's Blog URLSessionConfiguration Quick Guide Phantom types in Swift | Swift with Majid OptionSet in Swift • Andy Ibanez D...

Chris Vasselli, creator of Nihongo app, a modern Japanese dictionary and study tool 18.02.2021

Send me a text Chris Vasselli is the perfect example of the one thousand fans principle. A subscription based income from a niche product. How cool is that, doing what you love for a small group of dedicated end-users. Nihongo app - A modern Japanese dictionary and study tool. Demo of the OCR feature in Nihongo Chris Vasselli on Twitter Join me in Amsterdam for Do iOS 2025 , tickets and details av...

Dig into coding. 15.02.2021

Send me a text Much info on Swift and SwiftUI basics this week. I am writing lots and lots of code again over the last view days. It feels good to be back knee deep in code. A lot of stuff on my plate currently, big deadline, home remodelling. All things needing to be done. So let's dig in. This week's articles: 24 Quick Xcode Tips – Hacking with Swift Creating Custom Button Styles In Sw...

Nandini Chauhan and Pim Stolk of Finn: Banking of Things 10.02.2021

Send me a text Nandini and Pim are old colleagues of mine. I learned iOS development on the project the three of us worked on together. It has been years ago. Finn, banking of things. Join me in Amsterdam for Do iOS 2025 , tickets and details available now. Lead Software Developer   Learn best practices for being a great lead software developer. Support the show Do iOS: https://do-ios.com Rat...

Am I getting podcasting? You let me know… 08.02.2021

Send me a text Another week, another weekly news episode. Extra content around Sam's journey to becoming a paid iOS developer. Great updates from community members like Paul Hudson, John Sundell and Antoine van der Lee. You should try Hindenburg. What’s new in Swift 5.4? – Hacking with Swift Integrating SwiftUI Bindings and Combine – Rhonabwy XCTExpectFailure: Expected test failures explained...

Chris Liscio, owner of SuperMegaUltraGroovy, creator of Capo 04.02.2021

Send me a text Chris is the sole developer of SuperMegaUltraGroovy. Maker of Capo. A utility to learn music by ear, without tabs or sheet music.2 months ago he released version 4. It contains a big change in business model. Together Chris and I dig into his history and why Capo was created. 00:22 About SuperMegaUltraGroovy 02:07 What does Capo do? 05:26 Digging into some tech behind Capo. 14:35 Sw...

Long monday coding and recording 01.02.2021

Send me a text This monday has been a long day with a start that set me back the entire day. With minutes to spare I was able to record and publish this episode. News Understanding Basic Data Structures in Swift: Dictionaries in Depth | Andy Ibanez What is intrinsic content size and why care? | Filip Němeček How to create grid with Compositional Layout | Filip Němeček Lazy navigation in SwiftUI |...

Yuri Karabatov, iOS developer and book author of Junior to Senior: How to level up as a Software Engineer 27.01.2021

Send me a text Yuri Karabatov, author of "Junior to Senior, how to level up as a software engineer". We had a blast recording this. We even had to schedule a re-take for some content. It waschaotic. Yuri and I were going into tangents all over the place, this has been the longest and most challenging edit I have done thusfar. But the end result is amazing and really shows Yuri's per...

hashtag iOSDevHappyWhatTheHackHour 25.01.2021

Send me a text Great news, great community, great things for Sam. I am doing coaching with Sam, but he has been working hard. Not much left for me to do except cheer him on and answer a few questions. In this episode some great articles and info on recent community activities. News: Apple - Identity Pinning: How to configure server certificates for your app News: Dani Devese - Traits of a good acc...

Josh Holtz, maintainer of FastLane.tools and creator of AnOtterRSS and Indie Dev Monday 21.01.2021

Send me a text Most people know Josh as the maintainer of Fastlane tools. But there is a lot more to him. Indie Dev Monday and ConnectKit for example. Recently he became a dad, and this is his first speaking engagement since. Josh on Twitter https://www.joshholtz.com/ Josh presenting for CocoaHeadsNL Fastlane.tools and history ConnectKit Indie Dev Monday An Otter RSS Outro Join me in Amsterdam for...

Reach out and reach back 18.01.2021

Send me a text A lot in this episode. Sam, workshop, news and Donny monday. I'm getting closer to finding my true podcasting voice. So any feedback, always happy to learn. News: Building Instagram profile screen with Compositional Layout | Filip Němeček How to check if Text is truncated in SwiftUI? | Five Stars Avoiding SwiftUI’s AnyView | Swift by Sundell Traits of a good accessible iOS app...

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