System backend and start session and more.
sudo pacman -S extra-cmake-modules pkgconf qt5-base qt5-quickcontrols2 qt5-x11extras qt5-tools kwindowsystem polkit polkit-qt5 pulseaudio polkit-qt5https://github.com/Skycoder42/QHotkey
pulseaudiomkdir build
cd build
cmake ..
makesudo make install