DietPi is a lightweight Debian based Linux distribution for SBCs and server systems but with the option to install desktop environments, too. It ships as minimal image but allows to easily install complete and ready-to-use server software stacks with a set of console/whiptail based shell dialogs and scripts. Read all info at
https://dietpi.com/. The source code is hosted on GitHub:
https://github.com/MichaIng/DietPi