Timer is an open-source and simple application. It enables countdown timing in hours/minutes/seconds and:After finished timing possible shut down/reboot/suspend system, play beep and send notificationIt is possible allow/disable playing beepSet custom text for notification and alarm clock dialogUse keyboard shortcuts for start, pause or stop timer and reset timer values

Timer

SaveDesktop lets you save your current configuration (themes, icons, wallpapers, all desktop environment settings, extensions, etc.) with one click.Supported desktop environments: GNOME, Cosmic, Xfce, Budgie, Pantheon, MATE, KDE Plasma and Cinnamon

SaveDesktop

Save the current configuration of your desktop environment

This is a basic calculator, writed in PyGTK.

Apps by vikdevelop

Timer

SaveDesktop

VCalculator