gistfile1.txt

{ config, lib, pkgs, ... }:
{
  system.defaults.NSGlobalDomain.AppleKeyboardUIMode = 3;
  system.defaults.NSGlobalDomain.ApplePressAndHoldEnabled = false;
  system.defaults.NSGlobalDomain.InitialKeyRepeat = 10;
  system.defaults.NSGlobalDomain.KeyRepeat = 1;
  system.defaults.NSGlobalDomain.NSAutomaticDashSubstitutionEnabled = false;
  system.defaults.NSGlobalDomain.NSAutomaticQuoteSubstitutionEnabled = false;
  system.defaults.NSGlobalDomain.NSAutomaticSpellingCorrectionEnabled = false;
  system.defaults.NSGlobalDomain.NSNavPanelExpandedStateForSaveMode = true;
  system.defaults.NSGlobalDomain.NSNavPanelExpandedStateForSaveMode2 = true;
  system.defaults.finder.AppleShowAllExtensions = true;
  system.defaults.finder.QuitMenuItem = true;
  system.defaults.finder.FXEnableExtensionChangeWarning = false;

  services.nix-daemon.enable = true;
  services.nix-daemon.tempDir = "/nix/var/tmp";
  nixpkgs.config.launchd.user.envVariables.PATH = config.environment.systemPath;
  nixpkgs.overlays = [ (import <rust-overlay>) ];


  nix.package = pkgs.nixUnstable;
  nix.nixPath =
    [
      "darwin-config=$HOME/.nixpkgs/darwin-configuration.nix"
      "darwin=$HOME/.nix-defexpr/darwin"
      "nixpkgs=$HOME/.nix-defexpr/nixpkgs"
      "rust-overlay=$HOME/.config/nixpkgs/overlays/rust-overlay.nix"
    ];

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  environment.systemPackages =
    [ pkgs.nixUnstable
      pkgs.nix-repl
      pkgs.curl
      pkgs.coreutils
      pkgs.fzf
      pkgs.gettext
      pkgs.git
      pkgs.htop
      pkgs.jq
      pkgs.shellcheck
      pkgs.silver-searcher
      pkgs.taskwarrior
      pkgs.isyncUnstable
      pkgs.terminal-notifier
      pkgs.youtube-dl
      pkgs.zlib
      pkgs.shellcheck
      pkgs.myHaskellEnv
      pkgs.cabal2nix
      pkgs.msmtp
      pkgs.wget
      pkgs.p7zip
      pkgs.poppler
      pkgs.mpd
      pkgs.ncmpcpp
      pkgs.tig
      pkgs.httpie
      pkgs.jq
      pkgs.ripgrep
      pkgs.fd
      pkgs.pijul
      #pkgs.exa
      #pkgs.clog-cli
      pkgs.rustracer
      #pkgs.heatseeker
      #pkgs.cargo-edit
      #pkgs.ion
      #pkgs.tokei
      pkgs.parallel-rust
      pkgs.nix-index
      #pkgs.tectonic
      pkgs.xsv
      pkgs.myrust
    ];


 nixpkgs.config.packageOverrides = super: let self = super.pkgs; in
 {
   myrust = 
    (self.latest.rustChannels.nightly.rust.override 
      {
        extensions = [ "rust-src" "rust-std" "rust-analysis" ];
        targets = [ "x86_64-unknown-linux-gnu" ];
        targetExtensions = [ "rust-std" "rust-analysis" ];
      });
   myHaskellEnv = 
       self.haskell.packages.ghc822.ghcWithPackages
                    (haskellPackages: with haskellPackages;
                   [
                      # libraries
                      lens pipes base-prelude turtle foldl
                      # tools
                      cabal-install c2hs cpphs alex happy
                      hlint stylish-haskell hasktags pandoc
                      apply-refact structured-haskell-mode
                    ]);
 };

    environment.extraOutputsToInstall = [ "man" ];

  # Create /etc/bashrc that loads the nix-darwin environment.
  programs.fish.enable = true;
  programs.fish.vendor.config.enable = true;
  programs.fish.vendor.completions.enable = true;
  programs.fish.vendor.functions.enable = true;
  programs.bash.enable = true;

  # Recreate /run/current-system symlink after boot.
  services.activate-system.enable = true;

  # You should generally set this to the total number of logical cores in your system.
  # $ sysctl -n hw.ncpu
  nix.maxJobs = 8;
  nix.buildCores = 8;

  nix.gc.automatic = true;
  nix.gc.options = "--max-freed $((25 * 1024**3 - 1024 * $(df -P -k /nix/store | tail -n 1 | awk '{ print $4 }')))";

  launchd.user.agents.fetch-nixpkgs = {
    command = "${pkgs.git}/bin/git -C ~/.nix-defexpr/nixpkgs fetch origin master";
    environment.GIT_SSL_CAINFO = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
    serviceConfig.KeepAlive = false;
    serviceConfig.ProcessType = "Background";
    serviceConfig.StartInterval = 360;
  };
  
  #nix.binaryCachePublicKeys = [ "cache.daiderd.com-1:R8KOWZ8lDaLojqD+v9dzXAqGn29gEzPTTbr/GIpCTrI=" ];
  #nix.trustedBinaryCaches = [ https://d3i7ezr9vxxsfy.cloudfront.net ];
  nix.binaryCaches = [ http://cache.nixos.org ];
  nix.trustedBinaryCaches = [ http://cache.nixos.org ];
  nix.trustedUsers = [ "@admin" ];
  nix.useSandbox = true;

}