First: Clone the repo
$ cd <repo clone root>
$ nix build ~/.config/darwin\#darwinConfigurations.cipher-4590
$ ./result/sw/bin/darwin-rebuild switch --flake .
After completing the above,
darwin-rebuild
will be in $PATH
,
so a simple darwin-rebuild switch --flake <path>
will work fine.o
$ nixos-rebuild switch --flake <repo clone root>
will work
(if your hostname happens to be bennett-{server,laptop}
).