[Andrew Menadue] wrote in to let us know about the TULIP-DevBoard and TULIP-Module being developed on GitHub. TULIP is short for “The Ultimate Intelligent Peripheral” and it’s an everything expansion …read more (https://hackaday.com/2025/12/30/tulip-the-ultimate-intelligent-peripheral-for-the-hp-41-handheld-calculator/)

All Projections Suck, So Play Risk on a Globe Instead
https://hackaday.com/2025/12/30/all-projections-suck-so-play-risk-on-a-globe-instead/

The worst thing about the getting people together is when everyone starts fighting over their favourite map projection– maybe you like the Watterman Butterfly, but your cousin really digs Gall-Peters, …read more (https://hackaday.com/2025/12/30/all-projections-suck-so-play-risk-on-a-globe-instead/)

Modernizing a Classic Datsun Engine
https://hackaday.com/2025/12/30/modernizing-a-classic-datsun-engine/

Although Nissan has been in the doldrums ever since getting purchased by Renault in the early 2000s, it once had a reputation as a car company that was always on …read more (https://hackaday.com/2025/12/30/modernizing-a-classic-datsun-engine/)