Yruba provides a rule system similar to make or ant for the shell (bash). It provides a clear separation between a list of dependencies that must be up-to-date before the current task can be performed, an explicit test that checks whether the target is really out-of-date, and a command that finally makes the target. Everything is plain bash syntax, so there is no new command language to learn.
yuck is a command line option parser for C that works on a minimal set of dependencies - only a C compiler and the m4 macro processor are required. It supports all the standard use cases: GNU-style long options (--option), condensable short options (-xab for -x -a -b), and optional arguments to long and short options (--foo[=BAR]), multiple occurrence of options (-vvv). Most importantly, it does not depend on libc's getopt() nor getopt_long().
Z80~Ex is a portable ZiLOG Z80 CPU emulator designed as a library. Goals include precise opcode emulation (documented and undocumented), exact timings for each opcode (including I/O operations), and ability to emulate several virtual CPUs simultaneously. A Z80 code dissasembler is also included.
zJSP is an experimental translator from JavaServer Pages (jsp's) to Java. It is designed to be used in conjunction with Sun's Java Servlet Developers Kit (JSDK), version 2.0. It *should* work with any Java Servlet environment compatible with JSDK servlets. zJSP is implemented as a page compiler, translating JSP pages into Java Servlets, which are then run using a Java Servlet environment.
The zen Platform is a Java development environment for J2SE/J2EE. It eases and accelerates the Java application development by visual methods (RAD). Complete applications can be modelled in an intuitive fashion without the need for technical expertise. The complexity of Java and J2EE programming is tremendously hidden - reducing the learning curve for Java novices. Java experts are by no means restricted - they may apply their knowledge without limitations. Application flexibility is a core feature of the platform, which is delivered as an Eclipse plugin.