Firefly III: a personal finances manager

Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS powered by PHP, Markdown, Twig, and Symfony

ZoneMinder is a free, open source Closed-circuit television software application developed for Linux which supports IP, USB and Analog cameras.

Handy helper classes, tutorials, etc. for developers

Daylight Calendar is a dynamically generated .ics calendar that you can host and subscribe to in Google Calendar, iCal, or other calendar software.