Minteirb is a set of scripts used to automatically configure a Linux Mint installation (tested on Linux Mint 22.3 only).
Fully install Linux Mint on the computer. Then, just run ./finish_installation.sh from a terminal and follow the instructions if needed.
The custom os-prober script located at ./scripts/07_os-prober is based on the original script located at /etc/grub.d/30_os-prober in Linux Mint 22.3 which is part of the Grub project.