17 sep. 2021 kl. 15.20 skrev Stefan Monnier <monnier@iro.umontreal.ca>:

> For `elpa-admin.el` we need a writable directory as well.
> We also need the ability to run sub-processes.  Your `bwrap`
> implementation for GNU/Linux should allow that, AFAICT, but I can't tell
> if `darwin-sandbox-enter` also allows it.

Looks like it can be made to work.

Of course this whole exercise doesn't really touch the questions that really matter, such as whether it is practical for actual use.