post_install() {
	getent group qb64 &> /dev/null || groupadd qb64
	chgrp -R qb64 /opt/qb64/internal
	echo -e "\e[1;33m" # yellow
	echo 'To use QB64, you must be a member of the qb64 group.'
	echo "Run \`usermod $(logname) -a -G qb64`` to add your user to the group,"
	echo 'then log out and log back in.'
	echo -e "\e[1;0m" # default
}