In the following guides the examples would be from Linux From Scratch project. Scripts for that distro are provided in a release of any as spectacular implementation of complex build project with the given system.

To install LFS as the default project:

        mkdir -p ports/
        cp -Rf lfs/ports/* ports/

In case of usage of another project, you should install it into ports/ instead of LFS:

        mkdir -p ports/
        cp -Rf another-project/ports/* ports/