again, sorry for the late reply.
from what i can see this would persist all the environment variables in the export file during exit.
i also dont think this should be in the AeshConsoleBuilder, if anything it should be in the ExportManager.
one way we could enable this is to pass a boolean to ExportManager if it should load env variables, if so it should add those to a different map than the variables map. that would solve the persistence issue.