Features include:

Supports BIOS and UEFI boot

LVM2 managed disk volumes

Fully merged /usr hierarchy.

Fully encrypted system drive with no plaintext header or metadata.

Boot drive is encrypted and is removable once boot is complete.

Multi-stage build process that allows reuse of partial builds.

Instructions:

Same prerequisites as for building as Linux From Scratch (Tested using Debian).
Download the scripts and make them executable.
Create a directory to build the system in.
Make sure you are in the directory you want to build in.
Run make-tools.
Run make-userspace.
Run make-system.
Each script's output is reusable.
The final output is two disk images (a boot image and a system image)
The default hostname is skeleton.
The encryption passphrase for both disk images is "crypt".
The root password is "root".
Alter these passwords in the make-system script or change them after the new system is up and running.

Scripts:

make-tools

make-userspace

make-system