get-eggs: add penguins-eggs and configure it on your Arch, Debian, Devuan or Ubuntu or derivatives.
On Arch, it will add AUR repository - from that the original name addaura - on Debian famility, it will add a PPA for penguins-eggs.
To get a complete customized distro like colibri, starting from an original ISO, read HOWTO.
git clone https://github.com/pieroproietti/get-eggscd get-eggssudo ./get-eggs
This is a short and simple script, you are encouraged to fork the code and adapt it to your needs.
To create a naked Ubuntu I start from the server version, install it normally and after I remove the packages cloud-install and needrestart.