chore(direnv@modules): moved to modules

nix/modules/direnv/default.nix

@@ -0,0 +1,3 @@
+_: {
+  home = ./home.nix;
+}

nix/modules/direnv/home.nix

@@ -0,0 +1,22 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.modules.direnv;
+in
+{
+  options.modules.direnv = {
+    enable = lib.mkEnableOption "direnv";
+  };
+  config = lib.mkIf cfg.enable {
+    programs.direnv = {
+      enable = true;
+      # enableBashIntegration = true; # see note on other shells below
+      enableFishIntegration = true;
+      nix-direnv.enable = true;
+    };
+  };
+}