## 1. Project Overview & Quickstart (jacklandrin/ARCHITECTURE) # ARCHITECTURE Open-source repository jacklandrin/ARCHITECTURE ### Repository Details - **Repository:** [jacklandrin/ARCHITECTURE](https://github.com/jacklandrin/ARCHITECTURE) - **Primary Language:** Code *Note: High-volume repository documentation is actively indexed and synchronized by YakaAI.* ## 2. Official Technical Reference & Guides (jacklandrin/jacklandrin.github.io) ## File: src/content/work/chalkseven.md --- title: ChalkSeven publishDate: 2025-02-01 img: /assets/apps/chalkseven.png img_alt: ChalkSeven puzzle game interface tags: - iOS - SwiftUI - Game --- ChalkSeven is a compact puzzle game inspired by Drop7 and built entirely with SwiftUI. [View the source on GitHub](https://github.com/jacklandrin/ChalkSeven) --- ## File: src/content/work/germanwords.md --- title: GermanWords publishDate: 2025-01-01 tags: - Windows Phone - C# - Open Source --- GermanWords was created for people learning German and published in the Windows Phone Store before the store closed. [View the source on GitHub](https://github.com/jacklandrin/GermanWords) --- ## File: src/content/work/jlconsolelog.md --- title: JLConsoleLog publishDate: 2025-05-01 tags: - iOS - Swift - Developer Tool --- JLConsoleLog helps Swift developers inspect important application information in both development and production environments. It is designed to complement a project's diagnostic or backdoor toolkit, making hard-to-reproduce issues easier to investigate without losing the logs that matter. [View the source on GitHub](https://github.com/jacklandrin/JLConsoleLog) --- ## File: src/content/work/jlquizcard.md --- title: JLQuizCard publishDate: 2025-06-01 img: /assets/apps/jlquizcard.jpg img_alt: JLQuizCard artwork tags: - iOS - SwiftUI - Open Source --- JLQuizCard is a lightweight Anki-style flashcard app built with SwiftUI. Swipe gestures move between questions, while editing tools keep questions and answers easy to maintain. Cards can also become Lock Screen wallpapers through Shortcuts, making frequent review part of the day. [View the source on GitHub](https://github.com/jacklandrin/JLQuizCard) --- ## File: src/content/work/onlybaby.md --- title: OnlyBaby publishDate: 2025-12-01 img: /assets/apps/onlybaby.png img_alt: OnlyBaby app icon tags: - iOS - SwiftUI - Health & Fitness --- OnlyBaby helps parents track diapers, feeding, breastfeeding, pumping, and contractions in one calm, focused place. Charts make patterns easier to review over time. Home Screen widgets and a Lock Screen Live Activity keep frequent actions close at hand. [View OnlyBaby on the App Store](https://apps.apple.com/de/app/onlybaby/id6758526534) --- ## File: src/content/work/onlyswitch.md --- title: OnlySwitch publishDate: 2025-10-01 img: /assets/apps/onlyswitch.png img_alt: OnlySwitch app icon tags: - macOS - SwiftUI - Open Source --- OnlySwitch simplifies everyday Mac tasks with menu bar controls for hiding desktop icons, switching appearance, hiding the notch, keeping the Mac awake, and much more. In December 2021, OnlySwitch reached #1 on GitHub's weekly and daily Swift trending lists. It has been covered by iFun.de, Appgefahren.de, Caschys Blog, Softpedia, OSChina, and other technology publications. [Visit OnlySwitch](https://onlyswitch.click) ยท [View the source on GitHub](https://github.com/jacklandrin/OnlySwitch) --- ## File: src/content/work/payback.md --- title: PAYBACK publishDate: 2025-11-01 img: /assets/apps/payback.png img_alt: PAYBACK app icon tags: - iOS - SwiftUI - TCA --- PAYBACK serves around 30 million users across Germany and connects them with hundreds of partners. Customers can scan their card or shop online to collect points, then activate and redeem a wide range of coupons. The app is developed with modern iOS technologies including SwiftUI and The Composable Architecture. [View PAYBACK on the App Store](https://apps.apple.com/de/app/payback-karte-und-coupons/id363126964) --- ## File: src/content/work/qfpay.md --- title: QFPay publishDate: 2025-03-01 tags: - Windows - C# & C++ - Payments --- QFPay connects compact POS hardware with smartphone and desktop clients. It supports card payments, balance checks, credit-card repayment, and related merchant workflows. My work included Windows, Windows Phone, WPF, Qt, C#, and C++ technologies. [Visit QFPay](https://www.qfpay.global) --- ## File: src/content/work/qrcobot.md --- title: QRCobot publishDate: 2025-09-01 img: /assets/apps/qrcobot.png img_alt: QRCobot app icon tags: - iOS - SwiftUI - Utility --- QRCobot makes it easy to create the QR codes and barcodes you need, save favorites, and share them with other people. iOS widgets can place favorite codes directly on the Home Screen for quick scanning. The app has been featured by iPhone-Ticker.de. [View QRCobot on the App Store](https://apps.apple.com/us/app/qrcobot-qr-code-bar-code/id1590006394) --- ## File: src/content/work/weibo.md --- title: Weibo publishDate: 2025-08-01 img: /assets/apps/weibo.png img_alt: Weibo app icon tags: - iOS - Objective-C - Live Video --- Weibo is one of China's largest social media platforms, serving hundreds of millions of people around the world. I was responsible for developing live video streaming and vlog features for the iOS app. [View Weibo on the App Store](https://apps.apple.com/us/app/weibo/id350962117) --- ## File: src/content/work/welt-news.md --- title: WELT News publishDate: 2026-01-01 img: /assets/apps/welt.png img_alt: WELT News app icon tags: - iOS - News --- WELT News brings breaking news, background analysis, and live TV together in one product. It covers politics, business, sport, culture, and international affairs, with fast notifications for major events. Readers can watch WELT live streams, listen to podcasts, and access premium reporting through WELTplus. [View WELT News on the App Store](https://apps.apple.com/de/app/welt-news-live-tv/id340021100) --- ## File: src/content/work/xiudou.md --- title: Xiudou publishDate: 2025-04-01 tags: - iOS - Objective-C - Video Commerce --- Xiudou was one of the earliest video-commerce products, enabling people to discover and shop for products through vlog-style content.