Create hand-drawn animation using both bitmap and vector graphics

pencil2d

Create hand-drawn animation using both bitmap and vector graphics

Pencil2D is an animation/drawing software for Mac OS X, Windows, and Linux. It lets you create traditional hand-drawn animation (cartoon) using both bitmap and vector graphics.
simple and scientific calculator

kcalc

simple and scientific calculator

KCalc is a scientific calculator.
Application to ease management of a personal diary

almanah

Application to ease management of a personal diary

Almanah is a small application to ease management of a personal diary. It has basic editing and linking abilities like:
smart search launcher for installed programs or files

launchy

smart search launcher for installed programs or files

Launchy is the most efficient way to open files, folders, websites, and programs on your computer. Instead of having to browse the menus to find an application, Launchy is a smart search program which tries to guess which program or file you are looking for and will launch it when you hit the enter key. It runs in background and appears when the configured key combination is pressed (Ctrl+Space by default) or the tray icon is clicked.
Debian 10 / KDE Plasma 5.8.7

nitrogen

wallpaper browser and changing utility for X

nitrogen is a graphical wallpaper utility that can be used in two modes, browser and recall. Some of the things to look for in nitrogen are:
Main Window of Smuxi 0.8.11 on Unity

smuxi-frontend-gnome

GNOME frontend for Smuxi

Smuxi is an irssi-inspired, flexible, user-friendly and cross-platform IRC client for sophisticated users, targeting the GNOME desktop.