1. https://github.com/alexa/alexa-auto-sdk/blob/master/builder/README.md
$ sudo apt update
$ sudo apt upgrade -y
$ cd ~
$ git clone git://git.openembedded.org/openembedded-core oe-core -b rocko
$ cd oe-core
$ git clone git://git.openembedded.org/bitbake -b 1.36
$ export OE_CORE_PATH=$(pwd)
$ sudo apt install chrpath diffstat gawk texinfo \
python python3 wget unzip build-essential cpio \
git-core libssl-dev quilt cmake \
libsqlite3-dev libarchive-dev python3-dev \
libdb-dev libpopt-dev zlib1g-dev
$ sudo apt install libssl-dev
$ wget http://downloads.yoctoproject.org/releases/yocto/yocto-2.3.4/toolchain/x86_64/poky-glibc-x86_64-core-image-sato-aarch64-toolchain-2.3.4.sh
$ sudo ./poky-glibc-x86_64-core-image-sato-aarch64-toolchain-2.3.4.sh
$ sudo apt install -y gstreamer1.0-libav \
gstreamer1.0-plugins-bad \
gstreamer1.0-plugins-good \
libgstreamer-plugins-bad1.0-dev \
libgstreamer-plugins-base1.0-dev \
libgstreamer-plugins-good1.0-dev \
libgstreamer1.0-dev
2. $AAC_SDK_HOME/builder/build.sh linux -t native,pokyarm64 --pokysdk-path /opt/poky/2.3.4