We didn't have thought that Electron have such big size overhead when choosing it. In fact we just wrongly assumed that it will be lightweight. We will make the installer lightweight in the future, however there are much more important tasks on our todo list now, so we will do it slowly. We provide very light command line installers as well, so you can use it instead as you wish. Regarding these libraries, we want the installer to evolve into bigger app in the future - allowing you to install many Luna versions side by side, uninstall them or switch the current version. Moreover, we wanted to provide unified experience across platforms. It seems that something like QtQuick will be better suit here, but I haven't investigated it good enough yet to be sure it is the best choice.