The astute among you may remember an earlier version of this Russian beauty, the Lapa, which I featured last year around this time. Creator [lemosbor] claims that the worry was …read more (https://hackaday.com/2025/12/29/keebin-with-kristina-the-one-with-the-keyboard-mouse-again/)

Different Algorithms Sort Christmas Lights
https://hackaday.com/2025/12/29/different-algorithms-sort-christmas-lights/

Sorting algorithms are a common exercise for new programmers, and for good reason: they introduce many programming fundamentals at once, including loops and conditionals, arrays and lists, comparisons, algorithmic complexity, …read more (https://hackaday.com/2025/12/29/different-algorithms-sort-christmas-lights/)

39C3: Recreating Sandstorm
https://hackaday.com/2025/12/29/39c3-recreating-sandstorm/

Some synthesizer sounds are just catchy, but some of them are genre-defining. We think you could make that case for the Roland JP-8000 patch “Sandstorm”, which you’ve heard if you …read more (https://hackaday.com/2025/12/29/39c3-recreating-sandstorm/)

3D Printing a Telescope is Rewarding, Even if Not Always Cheaper
https://hackaday.com/2025/12/29/3d-printing-a-telescope-is-rewarding-even-if-not-always-cheaper/

What can one expect from 3D printing an 8″ Newtonian telescope? [Molly Wakeling] shares her thoughts after doing exactly that. The performance was on par with any solid 8″ telescope, …read more (https://hackaday.com/2025/12/29/3d-printing-a-telescope-is-rewarding-even-if-not-always-cheaper/)

The Rise of Fake Casio Scientific Calculators
https://hackaday.com/2025/12/29/the-rise-of-fake-casio-scientific-calculators/

Scientific calculators are an amazing invention that take pocket calculators from being merely basic arithmetic machines to being pocket computers that can handle everything from statistics to algebra. That said, …read more (https://hackaday.com/2025/12/29/the-rise-of-fake-casio-scientific-calculators/)

Playing a Game of Linux on your Sony Playstation 2
https://hackaday.com/2025/12/29/playing-a-game-of-linux-on-your-sony-playstation-2/

Until the 2000s, game consoles existed primarily to bring a bit of the gaming arcade experience to homes, providing graphical feats that the average home computer would struggle to emulate. …read more (https://hackaday.com/2025/12/29/playing-a-game-of-linux-on-your-sony-playstation-2/)

39C3: Liberating ESP32 Bluetooth
https://hackaday.com/2025/12/30/39c3-liberating-esp32-bluetooth/

Bluetooth is everywhere, but it’s hard to inspect. Most of the magic is done inside a Bluetooth controller chip, accessed only through a controller-specific Host-Controller Interface (HCI) protocol, and almost …read more (https://hackaday.com/2025/12/30/39c3-liberating-esp32-bluetooth/)