Recently, [Edward Schmitz] wrote in to let us know about his Hackaday.io project: SigCore UC: An Open-Source Universal I/O Controller With Relays, Analog I/O, and Modbus for the Raspberry Pi. …read more (https://hackaday.com/2025/12/22/sigcore-uc-an-open-source-universal-i-o-controller-for-the-raspberry-pi/)

Using an e-Book Reader as a Secondary Display
https://hackaday.com/2025/12/23/using-an-e-book-reader-as-a-secondary-display/

[Alireza Alavi] wanted to use an e-ink tablet as a Linux monitor. Why? We don’t need to ask. You can see the result of connecting an Onyx BOOX Air 2 …read more (https://hackaday.com/2025/12/23/using-an-e-book-reader-as-a-secondary-display/)

libxml2 Narrowly Avoids Becoming Unmaintained
https://hackaday.com/2025/12/23/libxml2-narrowly-avoids-becoming-unmaintained/

In an excellent example of one of the most overused XKCD images, the libxml2 library has for a little while lost its only maintainer, with [Nick Wellnhofer] making good on …read more (https://hackaday.com/2025/12/23/libxml2-narrowly-avoids-becoming-unmaintained/)