Bareos (Backup Archiving REcovery Open Sourced) is a fork of the backup project from bacula.org. It has been in development since late 2010, and has many new features.
Embedthis GoAhead is a tiny embedded Web server. It is fast, runs in less than 150K, and has been embedded to a wide variety of operating systems and CPUs.
A tool for writing one program which runs on both Python 2.6+ and Python 3.
Multiple vendor client/server UPS monitoring software.