efibootmgr
https://github.com/rhinstaller/efibootmgr
GPL-2.0+
https://github.com/rhinstaller/efibootmgr/releases/download/13/efibootmgr-13.tar.bz2
For computers with UEFI, I like to wipe out pre-existing EFI entires in order to start from a clean state. Some firmwares add many entries if the boot order is off (newer Acer laptops for example). Being able to clean such entires from a Solus LiveUSB would be nice.