Who’s Building that Data Center?
https://hackaday.com/2026/07/21/whos-building-that-data-center/
https://hackaday.com/2026/07/21/whos-building-that-data-center/
One of the biggest “David versus Goliath” stories in tech right now is the towns beset by AI data center projects they may or may not have asked for. Powered …read more (https://hackaday.com/2026/07/21/whos-building-that-data-center/)
Open Source Vacuum Avoids Cloud
https://hackaday.com/2026/07/21/open-source-vacuum-avoids-cloud/
https://hackaday.com/2026/07/21/open-source-vacuum-avoids-cloud/
As more and more of the technology that we paid for turns becomes a subscription, there’s slowly been a momentum shift in the open source world of building replacements for …read more (https://hackaday.com/2026/07/21/open-source-vacuum-avoids-cloud/)
As predominantly indoor creatures, it’s important to maintain a healthy habitat for the hacker. [Kishan Pratap Singh] designed a clever solution in AirSense, an ESP32-powered air filter. If you’re thinking …read more (https://hackaday.com/2026/07/21/a-smarter-diy-air-filter/)
60 FPS NES Emulator on ESP32
https://hackaday.com/2026/07/22/60-fps-nes-emulator-on-esp32/
https://hackaday.com/2026/07/22/60-fps-nes-emulator-on-esp32/
At least in theory, video games are more resistant to becoming lost media thanks to their digital nature — they’re easy to copy and emulators have saved many titles that …read more (https://hackaday.com/2026/07/22/60-fps-nes-emulator-on-esp32/)
Old TV Vacuum Tube Turned DIY X-Ray Machine
https://hackaday.com/2026/07/22/old-tv-vacuum-tube-turned-diy-x-ray-machine/
https://hackaday.com/2026/07/22/old-tv-vacuum-tube-turned-diy-x-ray-machine/
Just because you probably shouldn’t make a DIY X-ray machine, doesn’t mean nobody would. [mircemk] shows off his DIY unit, how it works, how to use it safely and of …read more (https://hackaday.com/2026/07/22/old-tv-vacuum-tube-turned-diy-x-ray-machine/)
Compile Here, Run Everywhere: Crosstool-Ng
https://hackaday.com/2026/07/22/compile-here-run-everywhere-crosstool-ng/
https://hackaday.com/2026/07/22/compile-here-run-everywhere-crosstool-ng/
In a recent post, I mentioned that I wanted to build some tools for a stripped-down Linux running on a 3D printer with a MIPS CPU. I had two options: …read more (https://hackaday.com/2026/07/22/compile-here-run-everywhere-crosstool-ng/)
Dress Up Your YubiKey With This Web-Based Tool
https://hackaday.com/2026/07/22/dress-up-your-yubikey-with-this-web-based-tool/
https://hackaday.com/2026/07/22/dress-up-your-yubikey-with-this-web-based-tool/