Code Crusader is a complete code development environment, inspired by MetroWerks CodeWarrior. It can run on any UNIX machine that uses the X Window System. JX is a full-featured application framework and widget library for use with the X Window System. It provides support for all facets of application development, including distributed applications, and aims to combine the best of MacOS and NeXTSTEP. It is built directly on top of Xlib and has been carefully optimized for performance.