Photo by https://kaboompics.com/ on Pexels The pitch sounded better than the reality I've written before about syncing my phone and laptop's clipboard, and that fix quietly became one of my favorite productivity tweaks. So when I kept seeing apps that promise to turn your phone into a second monitor for your laptop, I figured I'd found the next one. Extra screen real estate without buying an actual monitor? Sign me up. It did not become my favorite productivity tweak. Let me tell you what actually happened, because the honest version is more useful than the marketing version. The idea is simple enough: you install an app on your laptop and a companion app on your phone, connect over Wi-Fi or USB, and your phone's screen becomes an extension of your desktop. Drag a window over, and it lands on your phone. Apps like spacedesk, Duet Display, and Luna Display all do some version of this, and if you're on a Mac and an iPhone, Sidecar does it natively with zero s...
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