Devuan install to disk using zfs, largely following the process outlined in https://openzfs.github.io/openzfs-docs/Getting%20Started/Debian/Debian%20Bullseye%20Root%20on%20ZFS.html

## Blend config:
* disk name
* zfs pool names
* partition sizes and order
* legacy bios or efi boot
* grub theme

## Package install methods:
* via apt  	- additional packages defined in the blend config
* via dpkg 	- debs placed in the blend directory or the blends blend_packages directory
* via scripts	- custom scripts placed in the blends blend_scripts directory
* via dselect 	- the existance of a packages.list file in /var/tmp, install additional packages in the livesd image and run get_selections to generate them, or run the commands in the function on another system and write them to the bootstraps /var/tmp