The Common Unix Printing System (CUPS) is something all the GNU/Linux distributions use to manage printers. It’s been maintained by Apple since 2007. The Apple-lead CUPS development efforts appear to have completely died out after lead CUPS developer Michael Sweet left the company. CUPS isn’t dead, though, Sweet and others are still working on it in a fork maintained by the OpenPrinting organization.
Usually, these stories end in tears, with a desperate plea for interested parties and potential contributors to join and save the project. Luckily, this is not one of those stories – the Common Unix Printing System is safe, thanks to the wonders of open source.