nixos/modules/nix-settings.nix

{ config, lib, pkgs, inputs, nur, ... }:
{
  nix.settings.experimental-features = [ "nix-command" "flakes" ];
  nix.settings.extra-experimental-features = [ "nix-command" "flakes" ];
  nix.settings.cores = 2;
  nix.settings.max-jobs = 4;
  nix.settings.extra-substituters = [
    "https://cache.lix.systems"
  ];
  nix.settings.trusted-public-keys = [
    "cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o="
  ];
  nix.buildMachines = [{
    hostName = "unicron";
    system = "x86_64-linux";
    protocol = "ssh";
    maxJobs = 0;
  }];
  nix.distributedBuilds = true;
  nix.settings.builders = " ssh://unicron.local x86_64-linux " ;
  nix.extraOptions = ''
    builders-use-substitutes = true
  '';
  # dynamic linker
  programs.nix-ld.dev.enable = true;
  programs.nix-ld.dev.libraries = with pkgs; [
    cmake
    fontconfig
    harfbuzz
    freetype
    expat
    glib
    atk 
    gtk3 
    pango
    cairo
    gdk-pixbuf 
    zlib
    libz
    xorg.libxcb
    libxkbcommon
    libGL
    wayland
    vulkan-headers
    vulkan-loader
  ];
  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;
  nixpkgs.overlays = [ inputs.nur.overlay ];
}