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Backing up Core Data Stores

Today we’re going to travel back in time a little with Core Data. Or at least find out how your app can do so. What if you want to make a backup copy of your app’s data? What if you want to restore from that backup later on? This won’t be mainly about data safety, […]

The algorithm powering iHarmony

Problem I wrote the first version of iHarmony in 2008. It was the very first iOS app I gave birth to, combining my passion for music and programming. I remember buying an iPhone and my first Mac with the precise purpose of jumping on the apps train at a time when it wasn’t clear if […]

React.js — How to execute useEffect hook only once?

Have you ever faced this issue that your useEffect hook gets executed multiple times? Maybe sometimes it goes into the infinite loop? When React released the hooks feature, everyone jumped into it and started exploring new features and use-cases. I also started using functional components and completely abandoned the “class components” in my new projects. […]

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Easing Back Onto The Tennis Court – Essential Tennis Podcast #357 | Essential Tennis Podcast – Instruction, Lessons, Tips

Have you had a long break away from the court and you’re wondering how to transition back in an effective way? If so this episode of the Essential Tennis Podcast is critical listening! You’ll learn how to mentally, physically, and technically ease back into high quality tennis without overdoing it, injuring yourself, or setting unrealistic […]

Hacking Reolink cameras for fun and profit

Way back in late 2019, I dissected a Reolink B800 IP camera to demonstrate the various parts of an embedded Linux system. It’s fairly nice hardware, actually—it has a 4K video sensor, a microphone, power over Ethernet, and is nominally waterproof. And yes, it runs Linux. It came in a “kit” of six cameras and […]