To allow using my home-manager config on Darwin (and other non-NixOS
machines), I introduce the concept of home-manager-ext, which gives
me a much easier hook to import my config elsewhere.
Summary:
Adds porcorosso to the depot, and also adds the supporting Nix architecture required to make this work.
This also tests that encryption is working correctly.
Reviewers: tazjin
Reviewed By: tazjin
Subscribers: tazjin
Differential Revision: https://phab.lukegb.com/D8
