eViacam
eViacam is a free and open source mouse replacement program that moves the cursor when the head moves
Movim is a free and open source social and chat platform that acts as a web interface for the XMPP protocol
Semantik is a free and open source program for creating mind maps for KDE, which helps you create presentations, dissertations, essays, reports
Qalculate! – free and open source, cross-platform, simple yet powerful and versatile calculator
Elcalc is a free and open source, cross-platform simple calculator on Electron
Pro Office Calculator is a free and open source, simple calculator designed to perform simple arithmetic calculations
theCalculator is a free and open source, simple calculator that supports some scientific features
Azote is a free and open source wallpaper manager and color matching tool for Sway, i3, and WM
Fondo is a free and open source program for finding wallpapers on Unsplash.com and setting them as your desktop background