* Change ENV var check to only validate the existence of the
var in the local env
* Add VAGRANT_WORKER_SCALE env variable override to control
GUI scaling for virtualbox
Signed-off-by: James W. Brinkerhoff <jwb@paravolve.net>
Tinkerbell is made of different components as we all know at this point.
Sandbox had those versions all over the places. This PR moves them as
part of the `envrc` file.
Signed-off-by: Gianluca Arbezzano <gianarb92@gmail.com>
