Assume I have a package
X in the default environment
v1.0. Now I switch to a custom environment, e.g.
activate whatever. By default,
using X will work despite the fact that I never added
whatever, because (AFAIU) the package manager will check all
DEPOT_PATH paths, which includes
X will be found.
Is there a way, except just modifying the DEPOT_PATH, to tell Julia to be more strict and only look for packages in the current environment?