Very basic build instructions

$ source setup-build-env
$ bitbake citadel-image-minimal

Git subtrees included

$ git subtree add --prefix poky git://git.yoctoproject.org/poky.git master --squash
$ git subtree add --prefix meta-intel  git://git.yoctoproject.org/meta-intel.git master --squash
$ git gc && git prune

• https://www.atlassian.com/blog/git/alternatives-to-git-submodule-git-subtree
• https://legacy-developer.atlassian.com/blog/2015/05/the-power-of-git-subtree/