diff --git a/index.html b/index.html
index 51b2d17..02b4834 100644
--- a/index.html
+++ b/index.html
@@ -277,7 +277,7 @@ pre.pygments .tok-il { color: #666666 } /* Literal.Number.Integer.Long */
 <ul class="sectlevel3">
 <li><a href="#_access_a_top_level_package_from_the_nixpkgsnixos_repo_3">10.4.1. Access a top level package from the Nixpkgs/NixOS repo</a></li>
 <li><a href="#_access_a_flake_3">10.4.2. Access a flake</a></li>
-<li><a href="#_access_a_haskell_library_package_in_the_nixpkgs_repo_without_a_cabal_file_2">10.4.3. Access a Haskell library package in the nixpkgs repo (without a <code>.cabal</code> file)</a></li>
+<li><a href="#_access_a_haskell_library_package_in_the_nixpkgs_repo_without_using_a_cabal_file">10.4.3. Access a Haskell library package in the nixpkgs repo (without using a <code>.cabal</code> file)</a></li>
 <li><a href="#_set_an_environment_variable">10.4.4. Set an environment variable</a></li>
 <li><a href="#devshell-nix-non-flake">10.4.5. Access a non-flake package (not in nixpkgs)</a>
 <ul class="sectlevel4">
@@ -4816,7 +4816,7 @@ Hello from your flake!</pre>
 </div>
 </div>
 <div class="sect3">
-<h4 id="_access_a_haskell_library_package_in_the_nixpkgs_repo_without_a_cabal_file_2">10.4.3. Access a Haskell library package in the nixpkgs repo (without a <code>.cabal</code> file)</h4>
+<h4 id="_access_a_haskell_library_package_in_the_nixpkgs_repo_without_using_a_cabal_file">10.4.3. Access a Haskell library package in the nixpkgs repo (without using a <code>.cabal</code> file)</h4>
 <div class="paragraph">
 <p>Occasionally you might want to run a short Haskell program that depends on a Haskell library,
 but you don&#8217;t want to bother writing a cabal file.
@@ -4904,12 +4904,12 @@ and line 17 uses the custom GHC as a build input for this flake.</p>
 <span class="normal">3</span>
 <span class="normal">4</span>
 <span class="normal">5</span>
-<span class="normal">6</span></pre></div></td><td class="code"><div><pre><span></span><span class="tok-kr">import</span><span class="tok-w"> </span><span class="tok-nn">Text.Pandoc.Filters.Columns</span>
+<span class="normal">6</span></pre></div></td><td class="code"><div><pre><span></span><span class="tok-kr">import</span><span class="tok-w"> </span><span class="tok-nn">Data.List.Extra</span>
 
 <span class="tok-nf">main</span><span class="tok-w"> </span><span class="tok-ow">::</span><span class="tok-w"> </span><span class="tok-kt">IO</span><span class="tok-w"> </span><span class="tok-nb">()</span>
 <span class="tok-nf">main</span><span class="tok-w"> </span><span class="tok-ow">=</span><span class="tok-w"> </span><span class="tok-kr">do</span>
-<span class="tok-w">  </span><span class="tok-n">putStrLn</span><span class="tok-w"> </span><span class="tok-s">&quot;Prove we have access to the pandoc-columns package&quot;</span>
-<span class="tok-w">  </span><span class="tok-n">print</span><span class="tok-w"> </span><span class="tok-o">$</span><span class="tok-w"> </span><span class="tok-n">defaultColSpec</span>
+<span class="tok-w">  </span><span class="tok-n">print</span><span class="tok-w"> </span><span class="tok-o">$</span><span class="tok-w"> </span><span class="tok-n">lower</span><span class="tok-w"> </span><span class="tok-s">&quot;ABCDE&quot;</span>
+<span class="tok-w">  </span><span class="tok-n">print</span><span class="tok-w"> </span><span class="tok-o">$</span><span class="tok-w"> </span><span class="tok-n">upper</span><span class="tok-w"> </span><span class="tok-s">&quot;XYZ&quot;</span>
 </pre></div></td></tr></table></div></code></pre>
 </div>
 </div>
@@ -4920,21 +4920,13 @@ and line 17 uses the custom GHC as a build input for this flake.</p>
 <div class="content">
 <pre class="nowrap">$ runghc Main.hs      # Fails; dependency not available
 
-Main.hs:1:1: error: [GHC-87110]
-    Could not find module ‘Text.Pandoc.Filters.Columns’.
-    Use :set -v to see a list of the files searched for.
-  |
-1 | import Text.Pandoc.Filters.Columns
-  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+&lt;no location info&gt;: error: [GHC-49196] Can't find Main.hs
+*** Exception: ExitFailure 1
 $ nix develop
 $ runghc Main.hs      # Works in development environemnt
 
-Main.hs:1:1: error: [GHC-87110]
-    Could not find module ‘Text.Pandoc.Filters.Columns’.
-    Use :set -v to see a list of the files searched for.
-  |
-1 | import Text.Pandoc.Filters.Columns
-  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^</pre>
+&lt;no location info&gt;: error: [GHC-49196] Can't find Main.hs
+*** Exception: ExitFailure 1</pre>
 </div>
 </div>
 </div>
@@ -5644,7 +5636,7 @@ Hello from your flake!</pre>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2025-09-15 18:09:24 IST
+Last updated 2025-09-15 18:30:35 IST
 </div>
 </div>
 </body>
diff --git a/source/recipes/devshell/haskell-flake/tempwork/flake.nix b/source/recipes/devshell/haskell-flake/tempwork/flake.nix
deleted file mode 100644
index 331af5e..0000000
--- a/source/recipes/devshell/haskell-flake/tempwork/flake.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs";
-    flake-utils.url = "github:numtide/flake-utils";
-  };
-
-  outputs = { self, nixpkgs, flake-utils, pandoc-columns }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = import nixpkgs { inherit system; };
-        customGhc = pkgs.haskellPackages.ghcWithPackages (p: with p; [ extra ]);
-      in
-      {
-        devShells = rec {
-          default = pkgs.mkShell {
-	          buildInputs = [ customGhc ];
-          };
-        };
-      }
-    );
-}
diff --git a/source/recipes/devshell/haskell-pkg/flake.nix b/source/recipes/devshell/haskell-pkg/flake.nix
index 35cc9c0..331af5e 100644
--- a/source/recipes/devshell/haskell-pkg/flake.nix
+++ b/source/recipes/devshell/haskell-pkg/flake.nix
@@ -2,14 +2,13 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs";
     flake-utils.url = "github:numtide/flake-utils";
-    pandoc-columns.url = "/home/amy/github/pandoc-columns";
   };
 
   outputs = { self, nixpkgs, flake-utils, pandoc-columns }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs { inherit system; };
-        customGhc = pkgs.haskellPackages.ghcWithPackages (p: with p; [ pandoc-columns ]);
+        customGhc = pkgs.haskellPackages.ghcWithPackages (p: with p; [ extra ]);
       in
       {
         devShells = rec {
diff --git a/source/recipes/devshell/haskell-pkg/main.adoc0 b/source/recipes/devshell/haskell-pkg/main.adoc0
index 896a6b7..2dc745a 100644
--- a/source/recipes/devshell/haskell-pkg/main.adoc0
+++ b/source/recipes/devshell/haskell-pkg/main.adoc0
@@ -3,8 +3,8 @@
 ////
 $ mkdir tempwork
 $ cd tempwork
-$ cp ../flake.nix .
-$ git add flake.nix
+$ cp Main.hs ../flake.nix .
+$ git add Main.hs flake.nix
 $ nix develop
 $ git add flake.lock
 $ git commit -a -m temp