Our hacker [Wil Carver] has sent in his submission for the One Hertz Challenge: Precise Time Ref via 1 Pulse-Per-Second GPS Signal. This GPS Disciplined Oscillator (GPSDO) project uses a …read more (https://hackaday.com/2025/07/29/2025-one-hertz-challenge-precise-time-ref-via-1-pulse-per-second-gps-signal/)

Casting Meteorite-like Materials
https://hackaday.com/2025/07/29/casting-meteorite-like-materials/

From the outside, iron meteorites tend to look like formless, rusted lumps of metal, which is why museums often polish and etch sections to show their interior structure. This reveals …read more (https://hackaday.com/2025/07/29/casting-meteorite-like-materials/)

AVIF: The Avian Image Format
https://hackaday.com/2025/07/29/avif-the-avian-image-format/

Humans have long admired the sound of birdsong, but to fully appreciate how technically amazing it is, you need an ultrasonic microphone. [Benn Jordan] recently created a video about using …read more (https://hackaday.com/2025/07/29/avif-the-avian-image-format/)

A Dual-Screen Cyberdeck To Rule Them All
https://hackaday.com/2025/07/30/a-dual-screen-cyberdeck-to-rule-them-all/

We like cyberdecks here at Hackaday, and in our time we’ve brought you some pretty amazing builds. But perhaps now we’ve seen the ultimate of the genre, a cyberdeck so …read more (https://hackaday.com/2025/07/30/a-dual-screen-cyberdeck-to-rule-them-all/)

Everyone’s Invited to the Copyparty
https://hackaday.com/2025/07/30/everyones-invited-to-the-copyparty/

Setting up a file server can be intimidating to the uninitiated. There are many servers to choose from, and then you need to decide how to install it — Docker? …read more (https://hackaday.com/2025/07/30/everyones-invited-to-the-copyparty/)

Linux Fu: The Cheap Macropad Conundrum
https://hackaday.com/2025/07/30/linux-fu-the-cheap-macropad-conundrum/

You can get cheap no-brand macropads for almost nothing now. Some of them have just a couple of keys. Others have lots of keys, knobs, and LEDs. You can spring …read more (https://hackaday.com/2025/07/30/linux-fu-the-cheap-macropad-conundrum/)

One Man’s Trash… Bicycle Edition
https://hackaday.com/2025/07/30/one-mans-trash-bicycle-edition/

[Remy van Elst] found an obsolete bike navigation system, the Navman Bike 1000, in a thrift store for €10. The device was a rebadged Mio Cyclo 200 from 2015. Can …read more (https://hackaday.com/2025/07/30/one-mans-trash-bicycle-edition/)