OpenVPS is a set of software built on top of the Linux VServer aimed specifically at Web Hosting. It is not another set of kernel patches, but a set of scripts to create virtual servers, collect resource utilization information, and provide an interface to the customer as well as the administrator.
Nexenta is a complete GNU-based operating system built on top of the OpenSolaris kernel and runtime. The Debian system is used for software distribution and packaging to glue the numerous pieces together. However, Nexenta is not currently part of the Debian Project, nor are its packages present in the Debian database. It includes Apache, MySQL, Perl, Python, PHP, Firefox, Evolution, a software update manager, Synaptic package manager, Gaim, Abiword, administration and development utilities, editors, graphics, GNOME, interpreters, libraries, and much more.
SNAP Platform is a development toolkit that packages into an easy to install solution the the Jikes Java compiler, the SableVM Java-like virtual machine and the GNU Classpath Java-like API, and the Eclipse universal tools platform, plus sample programs with source code and developer documentation.
PyreRing is a test runner that executes scripts intended to act as individual test cases. By removing the administrative burden that often surrounds testing, the test author can focus on writing meaningful, direct, and useful test cases. As long as you wrap your test cases with a Unix shell or scripted language wrapper, it will be executed. It allows you to set a timeout value, send reports to email addresses, automatically organize your test cases with filesystem directories or suite files that you define, create automatic suites based on a predefined block in your test scripts, and capture standard out and standard error into a comprehensive log.