~$ cat .hadk.env
export MER_ROOT="/home/user/mer"
export ANDROID_ROOT="$MER_ROOT/android/droid"
export VENDOR="zuk"
export DEVICE="ham"
# ARCH conflicts with kernel build
export PORT_ARCH="armv7hl"

~$ cat .mersdkubu.profile
function hadk() { source $HOME/.hadk.env; echo "Env setup for $DEVICE"; }
export PS1="HABUILD_SDK [\${DEVICE}] $PS1"
hadk

~$ cat .mersdk.profile
function hadk() { source $HOME/.hadk.env; echo "Env setup for $DEVICE"; }
hadk