flake.nix

{
  description = "instantNIX";

  nixConfig = {
    extra-experimental-features = "nix-command flakes";

    extra-substituters = [
      "https://instantos.cachix.org"
    ];

    extra-trusted-public-keys = [
      "instantos.cachix.org-1:6GezJZuxIK59ydzdyoIw6Yr4H6DaCoLzqhPaDhB8v24="
    ];
  };

  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-21.11";

  outputs =
    { self
    , nixpkgs
    }:
    let
      inherit (nixpkgs) lib;
      systems = lib.platforms.linux;
      forAllSystems = lib.genAttrs systems;
      # forAllSystems = f: lib.genAttrs systems (system: f system);
      # lib.filterAttrs (n: v: lib.isDerivation v);
      # lib.filterAttrs (n: lib.isDerivation);
    in
    {
      packages = forAllSystems (system:
        lib.filterAttrs (n: v: lib.isDerivation v)
          (import ./default.nix {
            pkgs = nixpkgs.legacyPackages.${system} or (import nixpkgs { inherit system; });
          }) // {
          default = self.packages.${system}.instantnix;
        }
      );

      nixosModules = (import ./modules).modules;
    };
}