The Uncomplicated FireWall is a front-end for iptables, to make managing a Netfilter firewall easier. It provides a command line interface with syntax similar to OpenBSD's Packet Filter. It is particularly well-suited as a host-based firewall.

Spydr (pronounced like spider) basically is an FITS image viewer. It can work as a stand-alone application but is best integrated in a Yorick-based data-analysis work-flow (Yorick is an interpreted language specialized in numerical computations and scientific graphics). It includes tools to zoom, produce cuts, histograms, Gaussian/Moffat fits, PSF fits (inc. FWHM and Strehl). Can work on single images, sequences of images or data cubes.

It is written in Python, and it streams via node.js or ffmpeg. mkchromecast is capable of using lossy and lossless audio formats provided that ffmpeg is installed. It also supports Multi-room group playback, and 24-bits/96kHz high audio resolution. Additionally, a system tray menu is also available.

AClock is an analog clock with display of smooth seconds. It stays in the dock. The display is customizable:

MPICH is a high-performance and widely portable implementation of the MPI-4.1 standard from the Argonne National Laboratory. It efficiently supports different computation and communication platforms including commodity clusters, SMPs, massively parallel systems, and high-speed networks. This release has all MPI 4.1 functions and features required by the standard with the exception of support for the "external32" portable I/O format and user-defined data representations for I/O.