Evergreen ILS - Evergreen - Open Source Library Software
Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
TinyCat - The online catalog and integrated library system for tiny libraries, powered by LibraryThing.
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
Koha - Koha is the first free and open source software library automation package (ILS).
RANCID - RANCID - Really Awesome New Cisco confIg Differ.