Install the following host-tools:

$ echo "deb http://debian.linutronix.de/elbe-testing stretch main" > /etc/apt/sources.list.d/elbe.list
$ echo "deb http://debian.linutronix.de/elbe-common stretch main" >> /etc/apt/sources.list.d/elbe.list
$ wget -q -O - http://debian.linutronix.de/elbe-common/elbe-repo.pub | apt-key add -
$ apt-get update
$ apt-get install elbe

Use with e.g. poky:

$ git clone http://git.yoctoproject.org/git/poky
$ cd poky
$ git reset --hard 13c465663d0d1835773fb30baba345396cf0906e
$ git clone https://github.com/Linutronix/nneta-elbe
$ git clone https://github.com/Linutronix/nneta-elbe-ext
$ TEMPLATECONF=nneta-elbe/conf . ./oe-init-build-env build-elbe
# for building just one package
$ bitbake hello
# for building complete image
$ bitbake simple-image