diff --git a/flake.nix b/flake.nix
index 9e31aaea..ae9d4eba 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,7 +27,7 @@
     let
       inherit (builtins) baseNameOf;
       inherit (lib) nixosSystem mkIf removeSuffix attrNames attrValues;
-      inherit (lib.my) mapModules mapModulesRec mapModulesRec';
+      inherit (lib.my) dotFilesDir mapModules mapModulesRec mapModulesRec';
 
       system = "x86_64-linux";
 
@@ -69,13 +69,15 @@
               {
                 networking.hostName = removeSuffix ".nix" (baseNameOf modulePath);
                 environment.variables.NIXPKGS_ALLOW_UNFREE = "1";
+                environment.variables.DOTFILES = dotFilesDir;
                 nixpkgs.pkgs = pkgs;
                 nix = {
                   package = unstable.nixFlakes;
                   extraOptions = "experimental-features = nix-command flakes";
                   nixPath = [
                     "nixpkgs=${nixos}"
-                    "nixpkgs-overlays=${toString ./.}/overlays"
+                    "nixpkgs-overlays=${dotFilesDir}/overlays"
+                    "dotfiles=${dotFilesDir}"
                   ];
                   binaryCaches = [
                     "https://cache.nixos.org/"
diff --git a/lib/paths.nix b/lib/paths.nix
index 7d7b12c6..2d7cd03d 100644
--- a/lib/paths.nix
+++ b/lib/paths.nix
@@ -4,11 +4,11 @@ with builtins;
 with lib;
 rec {
   # ...
-  dotFiles   = toString ../.;
-  modulesDir = "${dotFiles}/modules";
-  configDir  = "${dotFiles}/config";
-  binDir     = "${dotFiles}/bin";
-  themeDir   = "${modulesDir}/themes";
+  dotFilesDir = toString ../.;
+  modulesDir  = "${dotFilesDir}/modules";
+  configDir   = "${dotFilesDir}/config";
+  binDir      = "${dotFilesDir}/bin";
+  themeDir    = "${modulesDir}/themes";
   homeDir = "/home/${let name = getEnv "USERNAME"; in
                      if elem name [ "" "root" ]
                      then "hlissner" else name}";