pass in an argument

[shmish111]

I would like to pass in an argument to the build and deploy in order to be able to specify which environment I want to deploy. This is not the same as using tags because all environments are almost exactly the same and I often create and destroy environments, so I just want to pass a variable called env through the nix configuration. I therefore want my default.nix to be

{ env }:
let
...
in
{
  "webserver" = { inherit env; ...}
}

[srhb]

We will welcome help with this, but probably won't work on it ourselves. I think an --arg foo bar version that works much like the rest of the Nix tooling is fine and intuitive enough for Nix users.