diff --git a/docs/default.nix b/docs/default.nix
index f8188b26..ea04e331 100644
--- a/docs/default.nix
+++ b/docs/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, pkgsLib, coricamuLib, config, inputs, ... }:
+{ pkgs, pkgsLib, coricamuLib, inputs, ... }:
 
 {
   baseUrl = "https://danth.github.io/stylix/";
@@ -11,7 +11,6 @@
       <a href="">Home</a>
       <a href="options.html">NixOS options</a>
       <a href="options-hm.html">Home Manager options</a>
-      <a href="haddock/doc-index.html">Haskell internals</a>
       <a href="https://github.com/danth/stylix">GitHub repository</a>
     </nav>
   '';
@@ -76,24 +75,4 @@
           };
     }
   ];
-
-  files.haddock =
-    let
-      ghc = pkgs.haskellPackages.ghcWithPackages
-        (ps: with ps; [ json JuicyPixels random ]);
-    in
-      pkgs.stdenvNoCC.mkDerivation {
-        name = "palette-generator-haddock";
-        src = ../palette-generator;
-        buildInputs = [ ghc ];
-        buildPhase = ''
-          haddock $src/**/*.hs \
-            --html \
-            --ignore-all-exports \
-            --use-contents '${config.baseUrl}' \
-            --odir $out
-        '';
-        dontInstall = true;
-        dontFixup = true;
-      };
 }
diff --git a/flake.nix b/flake.nix
index 0e4849b0..020ee98b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,32 +31,12 @@
     in recursiveUpdate docsOutputs {
       packages = genAttrs [ "aarch64-linux" "i686-linux" "x86_64-linux" ] (
         system:
-        let
-          pkgs = nixpkgs.legacyPackages.${system};
-
-          ghc =
-            pkgs.haskellPackages.ghcWithPackages
-            (ps: with ps; [ json JuicyPixels random ]);
-
+        let pkgs = nixpkgs.legacyPackages.${system};
         in {
-          palette-generator = pkgs.stdenvNoCC.mkDerivation {
-            name = "palette-generator";
-            src = ./palette-generator;
-            buildInputs = [ ghc ];
-            buildPhase = ''
-              ghc -O -threaded -Wall -Wno-type-defaults Stylix/Main.hs
-            '';
-            installPhase = ''
-              install -D Stylix/Main $out/bin/palette-generator
-            '';
-          };
+          palette-generator = pkgs.callPackage ./palette-generator { };
         }
       );
 
-      hydraJobs = {
-        inherit (self.packages.x86_64-linux) docs palette-generator;
-      };
-
       nixosModules.stylix = { pkgs, ... }@args: {
         imports = [
           (import ./stylix/nixos {
diff --git a/palette-generator/default.nix b/palette-generator/default.nix
new file mode 100644
index 00000000..a5b0c054
--- /dev/null
+++ b/palette-generator/default.nix
@@ -0,0 +1,38 @@
+{ haskellPackages, stdenvNoCC }:
+
+let
+  ghc = haskellPackages.ghcWithPackages (ps: with ps; [
+    JuicyPixels
+    json
+    random
+  ]);
+
+  # `nix build .#palette-generator.passthru.docs` and open in a web browser
+  docs = stdenvNoCC.mkDerivation {
+    name = "palette-generator-haddock";
+
+    src = ./.;
+    buildInputs = [ ghc ];
+
+    buildPhase = ''
+      haddock $src/**/*.hs --html --ignore-all-exports --odir $out
+    '';
+    dontInstall = true;
+    dontFixup = true;
+  };
+
+in stdenvNoCC.mkDerivation {
+  name = "palette-generator";
+
+  src = ./.;
+  buildInputs = [ ghc ];
+
+  buildPhase = ''
+    ghc -O -threaded -Wall -Wno-type-defaults Stylix/Main.hs
+  '';
+  installPhase = ''
+    install -D Stylix/Main $out/bin/palette-generator
+  '';
+
+  passthru = { inherit docs; };
+}