Fast C++ matrix library with interfaces to LAPACK and ATLAS.
ASN.1 Encode/Decode library
A modular Ruby webserver interface
Tools for creating, working with, and running Rails applications
A support libraries and Ruby core extensions extracted from the Rails framework
Local and cloud file storage framework
Object-relational mapper framework (part of Rails)
A toolkit for building modeling frameworks (part of Rails)
Job framework with pluggable queues