{ inputs, system ? builtins.currentSystem or "x86_64-linux" , ... }: let
  optionalAttrs = cond: as: if cond then as else { };

  bootstrapPkgs = import ./overlays { inherit inputs system; };
  inherit (pkgs) lib;

  patchedInputs = inputs /*// {
    nixpkgs = bootstrapPkgs.applyPatches {
      name = "nixpkgs";
      src = inputs.nixpkgs;
      patches = [
      ];
    };
  }*/ // { darwin = bootstrapPkgs.applyPatches {
    name = "darwin";
    src = inputs.darwin;
    patches = [ (bootstrapPkgs.fetchpatch {
      url = "https://patch-diff.githubusercontent.com/raw/LnL7/nix-darwin/pull/310.patch";
      sha256 = "sha256-drnLOhF8JGXx8YY7w1PD2arUZvbqafWPTatQNTHt+QI=";
    }) ];
  }; };

  pkgs = import ./overlays { inherit system; inputs = patchedInputs; };

  mkTree = import ./tree.nix { inherit lib; };
  localTree = mkTree {
    inputs = patchedInputs;
    folder = ./.;
    config = {
      "/" = {
        excludes = [
          "tf"
          "inputs"
          "tree"
          "flake"
          "meta"
          "outputs"
          "inputs"
          "trusted"
        ];
      };
      "modules/nixos" = {
        functor = {
          enable = true;
          external = [
            (inputs.tf-nix + "/modules/nixos/secrets.nix")
            (inputs.tf-nix + "/modules/nixos/secrets-users.nix")
          ] ++ (with (import (inputs.arcexprs + "/modules")).nixos; [
            nix
            systemd
            dht22-exporter
            glauth
            modprobe
            kernel
            crypttab
            mutable-state
            common-root
            pulseaudio
            wireplumber
            alsa
            bindings
            matrix-appservices
            matrix-synapse-appservices
            display
            filebin
            mosh
            base16 base16-shared
            doc-warnings
          ]);
        };
      };
      "modules/home" = {
        functor = {
          enable = true;
          external = [
            (import (inputs.arcexprs + "/modules")).home-manager
            (inputs.tf-nix + "/modules/home/secrets.nix")
          ];
        };
      };
      "modules/darwin".functor.enable = true;
      "modules/system".functor.enable = true;
      "modules/meta".functor.enable = true;
      "nixos/systems".functor.enable = false;
      "darwin/systems".functor.enable = false;
      "nixos/*".functor = {
        enable = true;
      };
      "darwin/*".functor = {
        enable = true;
      };
      "system".functor.enable = true;
      "hardware".evaluateDefault = true;
      "nixos/cross".evaluateDefault = true;
      "hardware/*".evaluateDefault = true;
      "services/*".aliasDefault = true;
      "home".evaluateDefault = true;
      "home/*".functor.enable = true;
    };
  };
  trustedTree = mkTree {
    inputs = patchedInputs;
    folder = inputs.trusted;
    config = {
      "secrets".evaluateDefault = true;
    };
  };

  tree = localTree // {
    pure = localTree.pure // {
      trusted = trustedTree.pure;
    };
    impure = localTree.impure // {
      trusted = trustedTree.impure;
    };
  };

  root = ./.;

  metaBase = import ./meta.nix { inherit config lib pkgs root; };

  nixfiles = tree.impure;

  eval = let
    nixosNodes = (map
    (node: {
      network.nodes.nixos.${node} = {
        imports = config.lib.kw.nixosImport node;
        networking = {
          hostName = node;
        };
      };
    })
    (lib.attrNames nixfiles.nixos.systems));
    darwinNodes = (map
    (node: {
      network.nodes.darwin.${node} = {
        imports = config.lib.kw.darwinImport node;
        networking = {
          hostName = node;
        };
      };
    })
    (lib.attrNames nixfiles.darwin.systems));
  in lib.evalModules {
    modules = lib.singleton metaBase
    ++ lib.singleton nixfiles.modules.meta
    ++ lib.attrValues nixfiles.targets
    ++ nixosNodes
    ++ darwinNodes;

    specialArgs = {
      inherit root tree;
      inputs = patchedInputs;
      meta = self;
    } // nixfiles;
  };

  inherit (eval) config;


  self = config // { inherit pkgs lib tree; inputs = patchedInputs; } // nixfiles;
in
  self