V4L2UCP is an universal control panel for V4L and V4L2 devices. It reads the description of the controls that the device supports from the device device, and presents the user with a graphical means for adjusting those controls; it allows for controlling multiple devices.

LXQt is an advanced, easy-to-use, and fast desktop environment based on Qt technologies. It has been tailored for users who value simplicity, speed, and an intuitive interface. Unlike most desktop environments, LXQt also works fine with less powerful machines.

ptask is a GTK+ graphical user interface for managing tasks. It is based on taskwarrior, a well-known and robust command line tasks manager. Unlike taskwarrior, it is possible to associate a note (long description) to each task.

Tegaki is an ongoing project which aims to develop a free and open-source modern implementation of handwriting recognition software, that is suitable for both the desktop and mobile devices, and that is designed from the ground up to work well with Chinese and Japanese.