ruby-debug is a fast implementation of the standard Ruby debugger debug.rb. It is implemented by utilizing a new Ruby C API hook. The core component provides support that front-ends can build on. It provides breakpoint handling, bindings for stack frames among other things.

A generic command line interface for ruby-debug.

Javascript packager and dependency resolver

Zool allows you to manage authorized_keys files on servers. It comes with a command-line client 'zool'. The configuration can be done in a pyconfig/gitosis like configuration file. See README.md for further details