This live CD is customized by roughly following the guidelines at:
https://
help.ubuntu.com/community/LiveCDCustomization
help.ubuntu.com/community/LiveCDCustomizationFromScratch
help.ubuntu.com/community/MakeALiveCD/DVD/BootableFlashFromHarddiskInstall
plus a lot of other info, like ubiquity and casper source code, and
additions for making the resulting iso EFI bootable.
Run things in generally this order:
extractiso.sh
extract the original iso
customize.sh
apply customizations
enter.sh
chroot into the install (for optional manual customization)
buildiso.sh
build the new iso
run.sh -c
boot the iso in qemu with a blank hdd, to test the install
run.sh -d
boot the installed hdd in qemu
cleanup.sh
remove everything but the isos