dotfiles.nix/darwin/bootstrap.nix

{ config, pkgs, lib, ... }: {
  # Nix configuration ------------------------------------------------------------------------------

  nix.settings = {
    trusted-substituters = [
      "https://cache.nixos.org/"
      "https://cache.iog.io"
      "https://nix-community.cachix.org"
      "https://mat.cachix.org"
      "https://helix.cachix.org"
      "https://pre-commit-hooks.cachix.org"
      "https://iohk.cachix.org"
    ];
    trusted-public-keys = [
      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
      "mat.cachix.org-1:AHqv9SoBEPKlJX2DDZQnjaMcvBAgpH1j8rw5USYDZno="
      "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
      "pre-commit-hooks.cachix.org-1:Pkk3Panw5AW24TOv6kz3PvLhlH8puAsJTBbOPmBo7Rc="
      "iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo="
    ];
    trusted-users = [ "@admin" ];
    # TODO: remove and replace with a launchd job
    # see https://github.com/NixOS/nix/issues/7273
    auto-optimise-store = true;
    experimental-features = [ "nix-command" "flakes" ];
    extra-platforms = lib.mkIf (pkgs.system == "aarch64-darwin") [
      "x86_64-darwin"
      "aarch64-darwin"
    ];
  };
  nix.configureBuildUsers = true;

  # Auto upgrade nix package and the daemon service.
  services.nix-daemon.enable = true;

  # Make Fish the default shell
  environment.shells = lib.mkForce
    (builtins.attrValues { inherit (pkgs) bashInteractive fish zsh; });

  programs.fish.enable = true;
  programs.fish.useBabelfish = true;
  programs.fish.babelfishPackage = pkgs.babelfish;
  # Needed to address bug where $PATH is not properly set for fish:
  # https://github.com/LnL7/nix-darwin/issues/122
  programs.fish.shellInit = ''
    for p in (string split : ${config.environment.systemPath})
      if not contains $p $fish_user_paths
        set -Ua fish_user_paths $p
      end
    end
  '';
  environment.variables.SHELL = "/run/current-system/sw/bin/fish";
  environment.loginShell = "/run/current-system/sw/bin/fish";

  # Install and setup ZSH to work with nix(-darwin) as well
  programs.zsh.enable = true;

  # Used for backwards compatibility, please read the changelog before changing.
  # $ darwin-rebuild changelog
  system.stateVersion = 4;

}