ActiveRecord has lots of callbacks like before_save, this gem logs all of the used ones to your log

Selectivly enabled features in your app on a system/per-user basis

Mounts a Fedora Commons repository as a FUSE filesystem

A Code for America sponsored Ruby wrapper for the FedSpending API. See FedSpending.org for more information.

The Engine Agnostic ECS Ruby Framework

Renamed to FelECS: https://rubygems.org/gems/felecs

A command line client to manage and sign SSH keys via Fenton Server

ffactory_girl provides a framework and DSL for defining and using factories - less error-prone, more explicit, and all-around easier to work with than fixtures.

Generate values for FFI enums directly

Ruby FFI bindings to libextractor, a library for extracting metadata from a variety of file formats.

Ruby FFI bindings to the http-parser library.

Ruby FFI bindings for the Hunspell spell checker and multi-dictionary support.

FFI Bindings for Libfuse

Extends Ruby FFI and uses LLVM to generate JIT wrappers for attached native functions. Works only on MRI

A pure ffi binding for mysql. This gem should be compatible with the MySQL/Ruby gem.

A low-level Ruby FFI wrapper for libexif.

A low-level Ruby FFI wrapper for libexiv2.

ffi-udis86 provides Ruby FFI bindings for the udis86, a x86 and x86-64 disassembler.

Ruby FFI bindings for the wiringPi library.

Generate complex filter-graphs for use with ffmpeg. ie: Values for its -filter_complex command-line option.