ubuntu-installer
There are 3 repositories under ubuntu-installer topic.
64kramsystem/zfs-installer
Program that prepares ZFS on a system, and installs Linux
Aetherinox/proteus-app-manager
An installation manager developed specifically for ZorinOS 16 / Ubuntu 20.04 LTS and newer.
sneetsher/mysystemindicator
A system indicator template/demo for Ubuntu Unity desktop (It is NOT an AppIndicator). It is showed on Unity panel in regular user session, lock screen, greeter screen and even on ubiquity screen (Ubuntu installer). Same as the other Ubuntu/Canonical system indicators, example indicator-sound...etc