MultiBoot USB
This is a collection of GRUB scripts that allows to create a bootable pendrive (USB dongle, flash stick) supporting a number of different OS images. Simply copy ISO files under `/iso-imgs`. Both UEFI and Legacy BIOS boot modes can be enabled simultaneously.
This is a project that contains a collection of GRUB files and scripts that will allow you to create a pendrive capable of booting a total of 115 supported utilities.