Daiderd Jordan

Yeah, a separate cachix image sounds good.

You don't want to add that on your host if you're not using the nix-daemon.

It's probably better to keep this as straightforward as possible to avoid confusing people. I think adding a footnote saying that this only works on linux for simplicity's sake might...

I disagree with adding platform specific conditionals to the examples, they should be as straightforward as possible to avoid confusion. Adding a disclaimer that these are intentionally linux only and...

Not sure, because the darwin stdenv has some impurities so I think it wouldn't be straightforward to make a proper example.

Next thing we'd have to do for hello is introduce darwin.cctools and there are probably more cases like that. The purpose of these examples is to explain the essentials of...

The default locked nixpkgs flake input should probably also be updated, if I'm not mistaken that's what the flake install test will use.

It's very much intentional that root channels are not used. With OS updates apple regularly nukes everything under `/root` so IMHO that's a bad place to manage channels on macOS,...

That's true, but the installer already makes assumptions about the current user as the generated/used system configuration is placed under ~/.config of the "admin" user that did the initial installation....

The main problem is that there's no link between the user running darwin-rebuild and users entries. It's probably better to link per user applications instead and move system packages to...