KDE Plasma 5 is a desktop environment built using KDE Frameworks 5 and QML which runs on top of a fully hardware accelerated graphics stack using Qt5, QtQuick 2 and an OpenGL(-ES) scenegraph.
Because KDE Plasma 5 is so new, there are issues preventing proper operation on some systems in the LFS environment. When these issues are worked out, then the build instructions will be added here. For more information, see https://www.kde.org/announcements/plasma-5.4.0.php.