QGIS is a Geographic Information System (GIS) which manages, analyzes and display databases of geographic information.

spiped (pronounced "ess-pipe-dee") is a utility for creating symmetrically encrypted and authenticated pipes between socket addresses, so that one may connect to one address (e.g., a UNIX socket on localhost) and transparently have a connection established to another address (e.g., a UNIX socket on a different system). This is similar to 'ssh -L' functionality, but does not use SSH and requires a pre-shared symmetric key.

Protocol::HPACK provides a compressor and decompressor for HTTP 2.0 headers, HPACK, as defined by RFC7541.

Remotipart is a Ruby on Rails gem enabling remote multipart forms (AJAX style file uploads) with jquery-rails.

Simplified checking the currently running Ruby version in your programs by providing the RubyVersion pseudo-constant.

TTFunk is a TrueType font parser written in pure Ruby. It gives access to various data included in a .ttf file, including the name, family, subfamily of the font, as well as some metrics information.