Bordeaux is a Wine GUI configuration manager that runs winelib applications. It also supports installation of third party utilities, installation of applications and games, and the ability to use custom configurations.
AQEMU is GUI for QEMU and KVM emulators. It has a user-friendly interface and allows you to set up the majority of QEMU and KVM options.
A Z-machine interpreter.
A shell library intended for Unix sysadmins.