uhat is a tool that listens to joystick events and converts hat switch axis events into the joystick button events X-Plane needs. Some joysticks have hat switches that are represented to the OS as two axes, even though mechanically they're just four 0/1 switches. These hat switches are often used for looking around through the cockpit in X-Plane.
Arista is an easy-to-use multimedia transcoder for the GNOME desktop. It focuses on the goal of transcoding media, namely the devices you wish to play the media on. It is designed for use by people who are not familiar with audio and video encoding and want an easy way to get multimedia to their devices. It supports input from DVD and V4L devices as well as regular files.