refactor: remove unused library functions, start removing with lib

devShell.nix

@@ -4,6 +4,8 @@ let
   config = meta;
   inherit (meta) pkgs;
   inherit (pkgs) lib;
+  inherit (lib.options) optional;
+  inherit (lib.attrsets) attrValues;
   nf-actions = pkgs.writeShellScriptBin "nf-actions" ''
     export START_DIR="$PWD"
     cd "${toString ./.}"
@@ -37,7 +39,7 @@ let
     darwin-rebuild switch --flake ${toString ./.}#sumireko
   '';
 in
-with lib; pkgs.mkShell {
+pkgs.mkShell {
   nativeBuildInputs = with pkgs; [
     inetutils
     nf-actions
@@ -45,17 +47,17 @@ with lib; pkgs.mkShell {
     nf-update
     sumireko-apply
   ] ++ config.runners.lazy.nativeBuildInputs
-  # ++ optional (builtins.getEnv "TRUSTED" != "") (pkgs.writeShellScriptBin "bitw" ''${pkgs.rbw-bitw}/bin/bitw -p gpg://${config.network.nodes.nixos.koishi.kw.secrets.repo.bitw.source} "$@"'')
+   ++ lib.optional (builtins.getEnv "TRUSTED" != "") (pkgs.writeShellScriptBin "bitw" ''${pkgs.rbw-bitw}/bin/bitw -p gpg://${config.network.nodes.nixos.koishi.kw.secrets.repo.bitw.source} "$@"'')
   ++ (map
     (node: writeShellScriptBin "${node.networking.hostName}-sd-img" ''
       nix build -f . network.nodes.${node.networking.hostName}.system.build.sdImage --show-trace
     '')
-    (filter (node: node.system.build ? sdImage) (attrValues meta.network.nodes.nixos)))
+    (builtins.filter (node: node.system.build ? sdImage) (attrValues meta.network.nodes.nixos)))
   ++ (map
     (node: writeShellScriptBin "${node.networking.hostName}-iso-img" ''
       nix build -f . network.nodes.${node.networking.hostName}.system.build.isoImage --show-trace
     '')
-    (filter (node: node.system.build ? isoImage) (attrValues meta.network.nodes.nixos)));
+    (builtins.filter (node: node.system.build ? isoImage) (attrValues meta.network.nodes.nixos)));
   shellHook = ''
     export HOME_HOSTNAME=$(hostname -s)
     export NIX_BIN_DIR=${pkgs.nix}/bin

hardware/default.nix

@@ -1,4 +1,4 @@
-{ lib, tree, ... }: with lib; let
+{ lib, tree, ... }: let
   profiles = tree.prev;
   appendedProfiles = with profiles; {
     ms-7b86 = {

hardware/networkmanager.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }: with lib; {
+{ config, lib, pkgs, ... }: {
   options = {
     home-manager.users = let
       applets = { config, nixos, ... }: {
@@ -8,9 +8,9 @@
           blueman-applet.enable = true;
         };
       };
-    in mkOption {
+    in lib.mkOption {
-      type = types.attrsOf (types.submoduleWith {
+      type = lib.types.attrsOf (lib.types.submoduleWith {
-        modules = singleton applets;
+        modules = lib.singleton applets;
       });
     };
   };
@@ -51,7 +51,7 @@
       networkmanager = {
         enable = true;
         connectionConfig = {
-           "ipv6.ip6-privacy" = mkForce 0;
+           "ipv6.ip6-privacy" = lib.mkForce 0;
         };
       };
     };

hardware/oracle/common.nix

@@ -1,54 +1,54 @@
-{ config, tf, meta, kw, pkgs, lib, inputs, ... }: with lib; let
+{ config, tf, meta, kw, pkgs, lib, inputs, ... }:  let
   oci-root = meta.deploy.targets.oci-root.tf;
   cfg = config.kw.oci;
 in
 {
   options.kw.oci = {
-    base = mkOption {
+    base = lib.mkOption {
       description = ''
         Canonical Ubuntu provides an EXT4 root filesystem.
         Oracle Linux provides an XFS root filesystem.
       '';
-      type = with types; enum [
+      type = lib.enum [
         "Canonical Ubuntu"
         "Oracle Linux"
       ];
       default = "Canonical Ubuntu";
     };
     specs = {
-      shape = mkOption {
+      shape = lib.mkOption {
-        type = with types; nullOr str;
+        type = lib.types.nullOr lib.types.str;
         default = null;
       };
-      cores = mkOption {
+      cores = lib.mkOption {
-        type = with types; nullOr int;
+        type = lib.types.nullOr lib.types.int;
         default = null;
       };
-      ram = mkOption {
+      ram = lib.mkOption {
-        type = with types; nullOr int;
+        type = lib.types.nullOr lib.types.int;
         default = null;
       };
-      space = mkOption {
+      space = lib.mkOption {
-        type = with types; nullOr int;
+        type = lib.types.nullOr lib.types.int;
         default = null;
       };
     };
     network = {
-      privateV4 = mkOption {
+      privateV4 = lib.mkOption {
-        type = with types; nullOr int;
+        type = lib.types.nullOr lib.types.int;
         default = null;
       };
-      publicV6 = mkOption {
+      publicV6 = lib.mkOption {
-        type = with types; nullOr int;
+        type = lib.types.nullOr lib.types.int;
         default = null;
       };
     };
-    ad = mkOption {
+    ad = lib.mkOption {
       description = ''
         Availability Domain.
         Important because, for example: EPYC instances can only be provisioned on AD2 in London.
       '';
-      type = with types; nullOr int;
+      type = lib.types.nullOr lib.types.int;
       default = null;
     };
   };
@@ -57,7 +57,7 @@ in
   ];
   config =
     let
-      interface = attrByPath [ cfg.specs.shape ] (throw "Unsupported shape") {
+      interface = lib.attrByPath [ cfg.specs.shape ] (throw "Unsupported shape") {
         "VM.Standard.A1.Flex" = "enp0s3";
         "VM.Standard.E2.1.Micro" = "ens3";
       };
@@ -68,7 +68,7 @@ in
           ${interface} = {
             useDHCP = true;
             ipv6 = {
-              addresses = mkIf (config.network.addresses.public.nixos.ipv6.enable) [{
+              addresses = lib.mkIf (config.network.addresses.public.nixos.ipv6.enable) [{
                 address = config.network.addresses.public.nixos.ipv6.address;
                 prefixLength = 64;
               }];
@@ -86,18 +86,18 @@ in
             let
               addr_ipv6_nix =
                 let
-                  prefix = head (splitString "/" (oci-root.resources.oci_kw_subnet.importAttr "ipv6cidr_block"));
+                  prefix = lib.head (lib.splitString "/" (oci-root.resources.oci_kw_subnet.importAttr "ipv6cidr_block"));
                 in
-                assert hasSuffix "::" prefix; prefix + toString config.kw.oci.network.publicV6;
+                assert lib.hasSuffix "::" prefix; prefix + toString config.kw.oci.network.publicV6;
             in
             {
               enable = true;
-              nixos.ipv6.address = mkIf tf.state.enable addr_ipv6_nix;
+              nixos.ipv6.address = lib.mkIf tf.state.enable addr_ipv6_nix;
-              nixos.ipv6.selfaddress = mkIf tf.state.enable addr_ipv6_nix;
+              nixos.ipv6.selfaddress = lib.mkIf tf.state.enable addr_ipv6_nix;
               tf.ipv6.address = tf.resources."${config.networking.hostName}_ipv6".refAttr "ip_address";
             };
         };
-        firewall.public.interfaces = singleton interface;
+        firewall.public.interfaces = lib.singleton interface;
         tf = {
           enable = true;
           ipv4_attr = "public_ip";
@@ -116,7 +116,7 @@ in
               connection = tf.resources."${config.networking.hostName}".connection.set;
             };
             connection = {
-              port = head config.services.openssh.ports;
+              port = lib.head config.services.openssh.ports;
             };
           };
           providers.oci = {
@@ -128,13 +128,13 @@ in
               private_key_path = oci-root.resources.oci_kw_key_file.importAttr "filename";
             };
           };
-          resources = mkMerge [{
+          resources = lib.mkMerge [{
             cloudinit = {
               provider = "cloudinit";
               type = "config";
               dataSource = true;
               inputs = {
-                part = singleton {
+                part = lib.singleton {
                   content_type = "text/cloud-config";
                   content = "#cloud-config\n" + builtins.toJSON {
                     disable_root = false;
@@ -188,7 +188,7 @@ in
                 inherit compartment_id;
                 extended_metadata = { };
                 metadata = {
-                  ssh_authorized_keys = concatStringsSep "\n" config.users.users.root.openssh.authorizedKeys.keys;
+                  ssh_authorized_keys = lib.concatStringsSep "\n" config.users.users.root.openssh.authorizedKeys.keys;
                   user_data = tf.resources.cloudinit.refAttr "rendered";
                 };
                 shape = cfg.specs.shape;
@@ -254,7 +254,7 @@ in
                     direction = "INGRESS";
                     ${if protocol == protoValues.TCP then "tcp_options" else "udp_options"} = {
                       destination_port_range =
-                        if isAttrs port then {
+                        if lib.isAttrs port then {
                           min = port.from;
                           max = port.to;
                         } else {
@@ -264,7 +264,7 @@ in
                     };
                   };
                 };
-                sourceProtos = cartesianProductOfSets {
+                sourceProtos = lib.cartesianProductOfSets {
                   source = [ ipv4 ipv6 ];
                   protocol = [ protoValues.TCP protoValues.UDP ];
                 };
@@ -280,7 +280,7 @@ in
                 rules = concatMap mapAllForInterface ([ firewall ] ++ map (interface: firewall.interfaces.${interface}) config.network.firewall.public.interfaces);*/
                 # TODO: use `count` and index into a fancy json or something?
               in
-              listToAttrs (imap0 (i: rule: nameValuePair "firewall${toString i}" rule) rules)
+              lib.listToAttrs (lib.imap0 (i: rule: lib.nameValuePair "firewall${toString i}" rule) rules)
             )];
         };
     };

hardware/oracle/default.nix

@@ -1,4 +1,4 @@
-{ lib, inputs, tree, ... }: with lib; let
+{ inputs, tree, ... }: let
   profiles = tree.prev;
   appendedProfiles = with profiles; {
     ubuntu = { config, ... }: {

hardware/ryzen.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib, ... }: with lib; {
+{ config, pkgs, lib, ... }: {
 /*
   This hardware profile corresponds to any machine which has an AMD Ryzen processor.
 */
@@ -7,7 +7,7 @@
     waybarExtend = { config, ... }: {
       options = {
         programs.waybar.settings = mkOption {
-          type = with types; listOf (submodule waybarExtend2);
+          type = lib.listOf (lib.submodule waybarExtend2);
         };
       };
     };
@@ -28,7 +28,7 @@
       };
     };*/
   in mkOption {
-    type = types.attrsOf (types.submoduleWith {
+    type = lib.types.attrsOf (lib.types.submoduleWith {
       modules = [ waybarExtend polybarExtend ];
     });
   };

hardware/wifi.nix

@@ -1,6 +1,9 @@
-{ config, tf, lib, ... }: with lib;
+{ config, tf, lib, ... }:
 
-{
+let
+  inherit (lib.attrsets) mapListToAttrs nameValuePair;
+  inherit (lib.modules) mkIf;
+in {
   kw.secrets.variables = mapListToAttrs
     (field:
       nameValuePair "wireless-${field}" {

hardware/x270.nix

@@ -1,10 +1,12 @@
-{ config, lib, ... }: with lib;
+{ config, lib, ... }:
 
 /*
   This hardware profile corresponds to the Lenovo Thinkpad x270.
 */
 
-{
+let
+  inherit (lib.options) mkOption;
+in {
   options.home-manager.users = let
     userTouchpadExtend = { config, nixos, ... }: {
       wayland.windowManager.sway.config.input."2:7:SynPS/2_Synaptics_TouchPad" = {
@@ -18,7 +20,7 @@
     waybarExtend = { config, ... }: {
       options = {
         programs.waybar.settings = mkOption {
-          type = with types; either (listOf (submodule waybarExtend2)) (attrsOf (submodule waybarExtend2));
+          type = lib.types.either (lib.types.listOf (lib.types.submodule waybarExtend2)) (lib.types.attrsOf (lib.types.submodule waybarExtend2));
         };
       };
     };
@@ -28,7 +30,7 @@
       };
     };
   in mkOption {
-    type = types.attrsOf (types.submoduleWith {
+    type = lib.types.attrsOf (lib.types.submoduleWith {
       modules = [ userTouchpadExtend waybarExtend ];
     });
   };

home/firefox/default.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, nixos, kw, ... }: with lib;
+{ config, lib, pkgs, nixos, kw, ... }:
 
 let
   commonSettings = {
@@ -127,7 +127,7 @@ in
       };
       extraNativeMessagingHosts = with pkgs; [
         tridactyl-native
-      ] ++ optional config.programs.buku.enable bukubrow;
+      ] ++ lib.optional config.programs.buku.enable bukubrow;
     };
     extensions = with pkgs.nur.repos.rycee.firefox-addons; [
       sponsorblock

home/mpv.nix

@@ -1,6 +1,9 @@
-{ config, lib, pkgs, ... }: with lib;
+{ config, lib, pkgs, ... }:
 
-{
+let
+  inherit (lib.modules) mkMerge mkIf;
+  inherit (lib.attrsets) mapAttrsToList;
+in {
   programs.mpv = {
     enable = true;
     scripts = [ pkgs.mpvScripts.sponsorblock pkgs.mpvScripts.paused ];
@@ -98,8 +101,8 @@
       osd-bar-h = 2.5; # 3.125 default
       osd-border-size = 2; # font border pixels, default 3
       term-osd-bar = true;
-      script-opts = lib.concatStringsSep ","
+      script-opts = builtins.concatStringsSep ","
-      (lib.mapAttrsToList (k: v: "${k}=${toString v}") {
+      (mapAttrsToList (k: v: "${k}=${toString v}") {
           ytdl_hook-ytdl_path = "${pkgs.yt-dlp}/bin/yt-dlp";
           osc-layout = "slimbox";
           osc-vidscale = "no";

home/shell/zsh.nix

@@ -36,7 +36,7 @@
           "listrowsfirst"
         ]; in
       ''
-	${if lib.hasSuffix "darwin" pkgs.stdenv.system then ''
+	${if lib.hasSuffix "linux" pkgs.stdenv.system then ''
         eval $(dircolors)
 	'' else ''
 	''}

home/syncplay.nix

@@ -1,8 +1,8 @@
 { config, lib, tf, ... }:
 
-with lib;
+let
-
+  inherit (lib.modules) mkForce;
-{
+in {
   kw.secrets.variables = {
     syncplay-pass = {
       path = "services/media/syncplay";

overlays/lib/color-helpers.nix

@@ -1,25 +0,0 @@
-{ lib }: rec {
-  hexChars =
-    [ "0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "a" "b" "c" "d" "e" "f" ];
-  hexCharToInt = char:
-    let
-      pairs = lib.imap0 (lib.flip lib.nameValuePair) hexChars;
-      idx = builtins.listToAttrs pairs;
-    in
-    idx.${lib.toLower char};
-  hexToInt = str:
-    lib.foldl (value: chr: value * 16 + hexCharToInt chr) 0
-      (lib.stringToCharacters str);
-  hextorgba = hex: alpha:
-    (
-      let
-        r_hex = lib.substring 1 2 hex;
-        g_hex = lib.substring 3 2 hex;
-        b_hex = lib.substring 5 2 hex;
-        r_dec = hexToInt r_hex;
-        g_dec = hexToInt g_hex;
-        b_dec = hexToInt b_hex;
-      in
-      "rgba(${toString r_dec}, ${toString g_dec}, ${toString b_dec}, ${toString alpha})"
-    );
-}

overlays/lib/domain-merge.nix

@@ -1,13 +0,0 @@
-{ lib }: { folder, defaultFile ? "default.nix", folderPaths ? [ ] }: with lib; let
-  defaultFileFinal =
-    if (defaultFile == "default.nix" && folder == "hosts") then
-      "nixos.nix"
-    else defaultFile;
-  folderModLists = map
-    (folderPath: modList {
-      modulesDir = folderPath;
-      defaultFile = defaultFileFinal;
-    })
-    (filter builtins.pathExists folderPaths);
-in
-foldl modListMerge { } folderModLists

overlays/lib/folder-list.nix

@@ -1,7 +0,0 @@
-{ lib }: path: excludes:
-let
-  filterAttrNamesToList = filter: set:
-    lib.foldl' (a: b: a ++ b) [ ]
-      (map (e: if (filter e set.${e}) then [ e ] else [ ]) (lib.attrNames set));
-in
-(filterAttrNamesToList (name: type: ! (builtins.elem name excludes) && type == "directory") (builtins.readDir path))

overlays/lib/intersect-merge.nix

@@ -1,5 +0,0 @@
-{ lib }: pathsA: pathsB: with lib; let
-  pathIntersection = intersectLists (attrNames pathsA) (attrNames pathsB);
-  pathMerger = pathA: pathB: { imports = [ pathA pathB ]; };
-in
-pathsA // pathsB // genAttrs pathIntersection (key: (pathMerger pathsA.${key} pathsB.${key}))

overlays/lib/module-list.nix

@@ -1,29 +0,0 @@
-{ lib }: { modulesDir, defaultFile ? "default.nix", importAll ? false }:
-
-with builtins;
-
-let
-  isModule = m: lib.isFunction m && (m.isModule or true);
-  filterAttrNamesToList = filter: set:
-    foldl' (a: b: a ++ b) [ ]
-      (map (e: if (filter e set.${e}) then [ e ] else [ ]) (attrNames set));
-  nameValuePair = name: value: { inherit name value; };
-  listToAttrs = foldl' (acc: val: acc // { ${val.name} = val.value; }) { };
-  directories =
-    filterAttrNamesToList (_: type: type == "directory") (readDir modulesDir);
-  files = map (dir: nameValuePair dir (modulesDir + "/${dir}/${defaultFile}"))
-    (filter (f: builtins.pathExists (modulesDir + "/${f}/${defaultFile}")) directories);
-  modules = map
-    ({ name, value }:
-      # if the file contains a function, assume it to be a module and pass the path
-      # (for dedup and such). if it contains anything else, pass that.
-      let m = import value;
-      in
-      {
-        inherit name;
-        value = if lib.isFunction m && ! isModule m then m { inherit lib; } else if isModule m && !importAll then value else m;
-      })
-    files;
-  modList = (listToAttrs modules);
-in
-modList

overlays/lib/overlay.nix

@@ -7,17 +7,10 @@
 , isOverlayLib ? false
 }@args:
 let
-  colorHelpers = import ./color-helpers.nix { inherit lib; };
   lib = before // katlib // self;
   katlib = with before; with katlib; with self;
     {
-      inherit (colorHelpers) hextorgba;
       nodeImport = import ./node-import.nix { inherit lib; };
-      virtualHostGen = import ./virtual-host-gen.nix { inherit lib; };
-      domainMerge = import ./domain-merge.nix { inherit lib; };
-      modListMerge = import ./intersect-merge.nix { inherit lib; };
-      modList = import ./module-list.nix { inherit lib; };
-      folderList = import ./folder-list.nix { inherit lib; };
     };
 in
 katlib

overlays/lib/virtual-host-gen.nix

@@ -1,11 +0,0 @@
-{ lib }: { config, networkFilter ? [ ], addresses ? [ ], block }: with lib;
-
-let
-  networks = config.network.addresses;
-  filteredNetworks = filterAttrs (n: v: elem n networkFilter) networks;
-  networkValues = attrValues filteredNetworks;
-  addressList' = concatMap (n: n.out.identifierList) networkValues;
-  addressList = map (n: builtins.unsafeDiscardStringContext n) addressList';
-  hostBlocks = map (host: nameValuePair host block) addressList;
-in
-listToAttrs hostBlocks

overlays/local/exa-noman/default.nix

@@ -1,63 +0,0 @@
-{ lib
-, stdenv
-, fetchFromGitHub
-, rustPlatform
-, cmake
-, pkg-config
-, zlib
-, installShellFiles
-, Security
-, libiconv
-}:
-
-rustPlatform.buildRustPackage rec {
-  pname = "exa";
-  version = "0.10.1";
-
-  src = fetchFromGitHub {
-    owner = "ogham";
-    repo = pname;
-    rev = "v${version}";
-    sha256 = "sha256-vChsy/FrJEzTO5O+XFycPMP3jqOeea/hfsC0jJbqUVI=";
-  };
-
-  # Cargo.lock is outdated
-  cargoPatches = [ ./update-cargo-lock.diff ];
-
-  cargoSha256 = "sha256-ah8IjShmivS6IWL3ku/4/j+WNr/LdUnh1YJnPdaFdcM=";
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    installShellFiles
-  ];
-
-  buildInputs = [ zlib ] ++ lib.optionals stdenv.isDarwin [ libiconv Security ];
-  outputs = [ "out" ];
-
-  postInstall = ''
-    installShellCompletion \
-      --name exa completions/completions.bash \
-      --name exa.fish completions/completions.fish \
-      --name _exa completions/completions.zsh
-  '';
-
-  # Some tests fail, but Travis ensures a proper build
-  doCheck = false;
-
-  meta = with lib; {
-    description = "Replacement for 'ls' written in Rust";
-    longDescription = ''
-      exa is a modern replacement for ls. It uses colours for information by
-      default, helping you distinguish between many types of files, such as
-      whether you are the owner, or in the owning group. It also has extra
-      features not present in the original ls, such as viewing the Git status
-      for a directory, or recursing into directories with a tree view. exa is
-      written in Rust, so it’s small, fast, and portable.
-    '';
-    changelog = "https://github.com/ogham/exa/releases/tag/v${version}";
-    homepage = "https://the.exa.website";
-    license = licenses.mit;
-    maintainers = with maintainers; [ ehegnes lilyball globin fortuneteller2k ];
-  };
-}

overlays/local/exa-noman/update-cargo-lock.diff

@@ -1,13 +0,0 @@
-diff --git a/Cargo.lock b/Cargo.lock
-index df94188..ed3a068 100644
---- a/Cargo.lock
-+++ b/Cargo.lock
-@@ -57,7 +57,7 @@ dependencies = [
- 
- [[package]]
- name = "exa"
--version = "0.11.0-pre"
-+version = "0.10.1"
- dependencies = [
-  "ansi_term",
-  "datetime",

overlays/local/xbackbone.nix

@@ -25,11 +25,11 @@ stdenv.mkDerivation rec {
     mv * $out
   '';
 
-  meta = with lib; {
+  meta = {
     description = "A lightweight file manager with full ShareX, Screencloud support and more";
     homepage = "https://xbackbone.app/";
-    license = with licenses; agpl3;
+    license = lib.licenses.agpl3;
-    maintainers = with maintainers; [ kittywitch ];
+    maintainers = [ lib.maintainers.kittywitch ];
-    platforms = with platforms; unix;
+    platforms = lib.platforms.unix;
   };
 }

tree.nix

@@ -1,4 +1,10 @@
-{ lib }: { config, folder, inputs, ... }@args: with lib; let
+{ lib }: { config, folder, inputs, ... }@args: let
+  inherit (lib.attrsets) filterAttrs mapAttrs' mapAttrs isAttrs nameValuePair attrValues;
+  inherit (lib.strings) hasPrefix removeSuffix;
+  inherit (lib.lists) imap1 singleton optionals optional sublist;
+  inherit (lib.trivial) pipe;
+  inherit (lib.options) mkOption;
+  inherit (lib.modules) evalModules;
   pureTreeGrab = { base, path }: let
     realPath = toString path;
     dirContents = builtins.readDir path;
@@ -24,36 +30,36 @@
  in contents;
   configTreeStruct = { config, ... }: {
     options.treeConfig = mkOption {
-      type = with types; attrsOf (submodule ({ name, options, config, ... }: {
+      type = lib.types.attrsOf (lib.types.submodule ({ name, options, config, ... }: {
         options = {
           evaluateDefault = mkOption {
-            type = types.bool;
+            type = lib.types.bool;
             description = "Replace the contents of this branch or leaf with those provided by the evaluation of default.nix.";
             default = false;
           };
           aliasDefault = mkOption {
-            type = types.bool;
+            type = lib.types.bool;
             description = "Replace the contents of this branch or leaf with the default.nix.";
             default = false;
           };
           excludes = mkOption {
-            type = types.listOf types.str;
+            type = lib.types.listOf lib.types.str;
             description = "Exclude files or folders from the recurser.";
             default = [];
           };
           functor = {
             enable = mkOption {
-              type = types.bool;
+              type = lib.types.bool;
               description = "Provide a functor for the path provided";
               default = false;
             };
             external = mkOption {
-              type = types.listOf types.unspecified;
+              type = lib.types.listOf lib.types.unspecified;
               description = "Add external imports into the functor.";
               default = [];
             };
             excludes = mkOption {
-              type = types.listOf types.str;
+              type = lib.types.listOf lib.types.str;
               description = "Exclude files or folders from the functor.";
               default = [];
             };
@@ -80,9 +86,9 @@
         else f (path ++ [name]) value;
     in mapAttrs g set;
   in f [] (recurse [] set);
-  getPathString = path: concatStringsSep "/" path;
+  getPathString = path: builtins.concatStringsSep "/" path;
   getConfig = path: default: configTreeModule.${getPathString path} or default;
-  revtail = path: sublist 0 (length path - 1) path;
+  revtail = path: sublist 0 (builtins.length path - 1) path;
   getConfigRecursive = path: let
     parentPath = revtail path;
   in getConfig (path ++ singleton "*") (getConfigRecursive parentPath);