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
Podcast website
Latest episode
Sep 29, 2025
Where to listen?
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Episodes
Emilio Peláez, iOS Developer 11.03.2022 49:50
Send me a text Emilio has been developing iOS apps for over 10 years. He is from Mexico, and now works at Modus Create. You can learn more about Emilio by having a look at: His Website His Twitter His LinkedIN 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 i...
Preparing for Try Swift 07.03.2022 14:57
Send me a text Workload is high this week, I need to get ready and give a workshop on Tuesday. Try Swift World Articles of this week What’s new in Swift 5.6? Building a Custom Combine Operator for Exponential Backoff UIKit navigation with SwiftUI views Using a SwiftUI View in a UIKit App as an individual component Supporting older SDK versions with Swift Some conferences: Swift Heroes SwiftConf Ap...
Twitter Space: Attending a conf as attendee or speaker 06.03.2022 47:03
Send me a text This week we talk about conferences. There’s a whole lot going on again in that space. Martin and I discus how we prepare ourselves for a conference, no matter if it is as a speaker or an attendee. With the help of Martin Mitrevski. Swift Heroes - Swift Conference by Synesthesia SwiftConf - International Swift and iOS Conference Appdevcon is a conference by app developers, for app d...
Manuel Carrasco Molina, aka Stuff MC, politician, activist and iOS developer 03.03.2022 58:00
Send me a text Manuel has been programming since he got his C64 in 1987. He also has been a local politician in Germany and an activist for many years. Whether for the cause of the environment or helping Refugees on the road, Manuel is eager to make an impact. He loves giving ethical talks at technical conferences. Manuel on Twitter Manuel's "About Me" page Join me in Amsterdam for...
Conference talk and some DocC follow-up 28.02.2022 12:56
Send me a text Episode 70 already, and what a week it has been this time round. Loads of stuff going on and then there’s the elephant in te room. I am unsure where I would start this week. Just know I did my thing to support certain people on my own account. News / Events What is the iOS version global market share DocC plugin PSA XCTNSPredicateExpectation is slow, and what to do about it Using t...
Twitter Space: Getting into iOS Developer Relations 25.02.2022 49:19
Send me a text In this Twitter Space, Rudrank and I talk about our respective journey of going from software engineering to Developer Relations. We talk about the challenges faced, what our week looks like, where we work, and what makes a good DevRel. (Pretty much a copy paste from Rudrank’s newsletter .) https://cocoaheads.nl/ Join me in Amsterdam for Do iOS 2025 , tickets and details available n...
Gabriel Savit, co-founder at Runway after working as iOS developer 24.02.2022 46:52
Send me a text Learn about why Gabriel and his co-founders got started with Runway. He started out as an iOS developer, but things quickly progressed from there. Gabriel on Twitter: https://twitter.com/GabrielSavit 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...
I have a cold, a CFP accepted and a newsletter mention. 22.02.2022 10:12
Send me a text Weird week for me. I will share more in the future. But it is pretty much a couple days of me keeping my head down. Keeping on working at a sustainable pace. Havind a big old cold at the tail end of Omicron is no fun. All tests are negative though. Working with Xcode configuration files | iOS development on tanaschita.com Native Network Monitoring In Swift A few examples of async aw...
Twitter Space: SwiftUI versus UIKit 18.02.2022 45:50
Send me a text This time Stefan and I share our thoughts on the topic of choosing SwiftUI or UIKit for your next iOS project. Fortunatly things are very nuanced and there are also some clear guiding principles we were able to come up with. The Paul Hudson video comparing SwiftUI against UIKit mentioned by Jeroen. Blog written by Jeroen: UIKit vs. SwiftUI: How to Choose the Right Framework for Your...
Benedikt Terhechte, a Rust and iOS Developer located Hamburg. 17.02.2022 1:00:03
Send me a text You might know about Benedikt through one of his confernce talks, or the podcast he did with Bas Broek. Anyways, he has done some interesting things in with Rust on iOS. Oh and… “Basically, it just involves a crazy amount of brackets. So if you find Objective C offensive, then please do not look at Lisp code.” I think it was me who said that and I do not know where I heard if first,...
DocC and SwiftUI error handling 15.02.2022 9:44
Send me a text Some cool articles again. I made a quick recording because I am super busy at the moment. Links of this episode Deep linking and URL scheme in iOS Setting up Xcode Cloud for Automated Builds, Tests and Distribution Error Handling with Combine and SwiftUI - How to handle errors and expose them to the user | Peter Friese Tips for getting the most out of DocC – Rhonabwy Twitter Space S...
Twitter Space: Everyday Leadership as a software developer 11.02.2022 57:54
Send me a text We dive into some of the content of the book by Jeroen. Jeroen wrote a book with the title “Being a Lead Developer”. But many of the practices in his book also apply to developers in individual contributer roles. Listen in and take some practical advice you could start using right after the discussion. If you have questions, please reach out to Jeroen or Stefan on Twitter. Join me i...
Jon Reid, book author and iOS Unit Testing Champion 10.02.2022 1:05:57
Send me a text Jon and I share some memories before we dive into his history. Jon is one of those mellow friendly persons who will just wait for you to start asking questions. And once you do, be ready for the wealth of knowledge and detail you will get as a response. Jon also wrote a book on iOS unit testing. Nowadays Jon works at Industrial Logic and by how he describes it, Jon has found his tri...
WiFi needs to be easier, but gradients are always cool 08.02.2022 17:15
Send me a text Some WiFi stuff going on at home. Some really cool articles and releases this week from the iOS community. Twitter Space: Leadership as a Developer, no matter your current lvl Articles Always correct gradient text in UIKit | Filip Němeček Learn How to Bring Your SwiftUI App to Life With Advanced Animations Memory management when using async/await in Swift | Swift by Sundell Unders...
Twitter Space: iOS Coffee Chat: How to Learn New Things? 05.02.2022 53:03
Send me a text Another Twitter Spaces recording. Was a lot of fun with Stefan again. Soon we will begin deep diving into some very much iOS related topics. For now, we lay some groundwork on how learning new things might work. Including the approaches Stefan and I use. There is even a confession in there on how Jeroen could do this better. Documentation Apple Developer Documentation (often bashed...
Juanpe Catalán, senior iOS developer, creator of SkeletonView. 03.02.2022 45:36
Send me a text Meet Juanpe, he is from Spain, studied at the University of Sevilla. He got started as an iOS developer right at the start of his career and has been doing that ever since. Have a look at Juanpe does: https://twitter.com/juanpecatalan His LinkedIN SkeletonView on Github His Github profile Join me in Amsterdam for Do iOS 2025 , tickets and details available now. Lead Software Develop...
We have been using Xcode for such a long time… 31.01.2022 13:06
Send me a text How about that, some primordial version of what we now call Xcode has been released 20 years ago. That is just epic. Find out more on the history of Xcode and other new interesting articles now. Articles mentioned this week: Hosting your Swift Library Docs on Github Pages – Rhonabwy Special Effects with SwiftUI – Hacking with Swift How to create asynchronous Swift Command-Line Tool...
Twitter Space: iOS Coffee Chat: Staying up to date with iOS development 27.01.2022 37:34
Send me a text This is a Twitter Space recording, so my audio sounds way worse compared to normal. But hey. It is good content regardless. On January 26, Stefan Blos and I hosted a Twitter Space called “iOS Coffee Chat: Staying up to date with iOS development”.We hope to do more of these. This episode is the permanent archive of that Space. Recommendations to get started? Just try https://netnews...
Emin Grbo, App Developer at Tidal, creator of un:safe 26.01.2022 51:59
Send me a text Emin has quite some experience working in tech. First as a designer and later he switched into iOS. He now works at Tidal, a large music playing service. Besides his day job he is trying to bootstrap his Indie business. Already he has released a couple apps. Especiallu un:safe. A sort of safe craching game using haptic feedback. Originally developed for the Apple Watch. You can find...
Doing all kinds of new things, learning as you go… 24.01.2022 22:41
Send me a text One awesome announcement this week. My regular news articles, and loads of info about the articles I mention. Here are this week's articles: Using decorator pattern to add architectural non-intrusive analytics in Swift Migrating our Objective-C SDK to Swift – RevenueCat Tasks in Swift explained with code examples - SwiftLee Develop a command-line tool using Swift Concurrency Op...
Marin Todorov, independent iOS developer, book author, trainer, and speaker 20.01.2022 49:17
Send me a text Meet Marin, if you visit a conference or two, there is a good chance you have met Marin in person. Marin joins me on my podcast and we discus his work as a software developer. An interesting bit is his work on DocC. Yes, that’s the new documentation tool in shipped with Xcode. He also recently published his latest book Modern Concurrency in Swift. There is tons more things Marin has...
Sometimes things go haywire, like the first recording of this episode 18.01.2022 12:48
Send me a text That was a bit of a setback. First recording of this episode... lost. I don't know yet what exactly happened. But hey, rerecording was the easiest thing to do. Fixing wrong animations with Diffable Data Source | Filip Němeček How to write HTML in Swift? - The. Swift. Dev. Automating App Store Publishing Networking with Combine and SwiftUI - Getting Started | Peter Friese Protot...
Xcode is our playground and let's meet at conferences this year. 11.01.2022 22:47
Send me a text Last week I mentioned I wanted to get myself at more conferences this year. And already I have 3 opportunities lined up. That’s amazing. Next to that, people in the iOS community are at it again in full force after the holidays. Lots of great stuff. I had tons of articles to go through. Enjoy this week’s links. Swift Playgrounds 4: Building a Text-to-speech App on iPad Swift compute...
Adam Rush, SwiftLeeds organizer, RayWenderlich author and my colleague at Stream 05.01.2022 41:01
Send me a text This time I have my colleague Adam Rush as a guest. He organized Swift Leeds, creates content for RayWenderlich.com. He has a fun origin story. A self taught software developer who got started right when the iPhone 3G was a thing. You can find more on Adam online on: Twitter: https://twitter.com/adam9rush His blog: https://www.swiftlyrush.com/ His newsletter: https://swiftlyrush.cur...
Happy New Year, let's dive right in. 04.01.2022 17:34
Send me a text First episode of the new year. Happy new year everyone. Enjoy this week’s articles and as always, please reach out on Twitter. I love hearing from you. Here are this week's links: Convert your Swift Facades to the new async/await syntax using Continuations | by César Vargas Casaseca | Dec, 2021 | Medium “Solving Advent of Code 2021 in Swift” by Harshil Shah What I’ve learnt fro...
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