sudo pacman -S git make cmake gcc gettext extra-cmake-modules qt5-tools qt5-x11extras kcrash kglobalaccel kde-dev-utils kio knotifications kinit kwin qt5-base kwindowsystem xorg base-devel libc++ kdecoration kconfig kcoreaddons kconfigwidgets kcodecs kwidgetsaddons kauth kguiaddons ki18n glibc linux-headers linux-api-headers libepoxy $(pacman -Ssq ^libx)
git clone https://github.com/a-parhom/LightlyShaders
cd LightlyShaders; git checkout v2.0
mkdir qt5build; cd qt5build; cmake ../ -DCMAKE_INSTALL_PREFIX=/usr -DX11_X11_INCLUDE_PATH=/usr/include/X11 && make && sudo make install && (kwin_x11 –replace &)