# see what OpenSCAD versions are available apt search openscad #install the repository to the local package manager wget -qO - http://files.openscad.org/OBS-Repository-Key.pub | sudo apt-key add - # add the entry for the target OS version (this one is for Ubuntu 16.04) sudo vi /etc/apt/sources.list.d/openscad.list save the following to openscad.list: deb http://download.opensuse.org/repositories/home:/t-paul/xUbuntu_16.04/ ./ # update the local package manager sudo apt-get update # verify 'openscad-nightly' is now listed apt search openscad # install the nightly build of OpenSCAD sudo apt-get install openscad-nightly # test/run the nightly executable openscad-nightly --helpResource: OpenSCAD Download Guide