- Elementary OS - https://github.com/elementary/os (The GOAT of ISO Building Codebase)
- Cinnamon - https://github.com/ubuntucinnamon/iso-builder-devel (Fork of ElementaryOS Builder)
- VanillaOS - https://github.com/Vanilla-OS/live-iso (Fork of Cinnamon Builder)
- Rhino OS - https://github.com/rhino-linux/os (Fork of VannillaOS Builder)
- UbuntuBudgie - https://github.com/UbuntuBudgie/iso-builder (Fork of ElementaryOS Builder)
- QuadScope - https://github.com/Quadscope/live-image (Easy to Read and Learn Code)
- Ubuntu From Scratch (uses old debootstrap approach with chroot scripts) - https://github.com/mvallim/live-custom-ubuntu-from-scratch/