Gnoppix is inspired by Knoppix, a Live CD distribution which used KDE for its user interface until the version 6 release when it switched to LXDE. Both distributions are based on Advanced Packaging Tool, designed for Debian. The name is a play on Knoppix but with a G, in the tradition of naming GNOME apps with an initial G (to KDE's K). Although Gnoppix was intended to be used as a Live CD, it could also be installed to and booted from a hard disk. Gnoppix was originally built around its own customised Live CD environment. The main developer, Andreas Mueller, was hired by Canonical to continue his work at Ubuntu.