diff --git a/index.html b/index.html
index e8c9b7f..002c6b5 100644
--- a/index.html
+++ b/index.html
@@ -213,7 +213,9 @@
 </li>
 </ul>
 </li>
-<li><a href="#_an_old_style_nix_shell_with_access_to_a_flake">10.5. An (old-style) Nix shell with access to a flake</a></li>
+<li><a href="#_buildruntime_environments">10.5. Build/runtime environments</a></li>
+<li><a href="#_special_situations">10.6. Special situations</a></li>
+<li><a href="#_an_old_style_nix_shell_with_access_to_a_flake">10.7. An (old-style) Nix shell with access to a flake</a></li>
 </ul>
 </li>
 </ul>
@@ -4847,7 +4849,8 @@ Hello from your nix package!</pre>
 <div class="sect4">
 <h5 id="devshell-impure">If the nix derivation requires <code>nixpkgs</code></h5>
 <div class="paragraph">
-<p>We need to write the derivation ourselves, using <code>default.nix</code> as a model.
+<p>In this case, we need to write the derivation ourselves.
+We can use <code>default.nix</code> as a model.
 Line 15 should be replaced with:</p>
 </div>
 <div class="listingblock">
@@ -4871,7 +4874,35 @@ Line 15 should be replaced with:</p>
 </div>
 </div>
 <div class="sect2">
-<h3 id="_an_old_style_nix_shell_with_access_to_a_flake">10.5. An (old-style) Nix shell with access to a flake</h3>
+<h3 id="_buildruntime_environments">10.5. Build/runtime environments</h3>
+<div class="paragraph">
+<p>Unresolved directive in recipes/build/main.adoc - include::nixpkg/main-generated.adoc[leveloffset=+1]</p>
+</div>
+<div class="paragraph">
+<p>Unresolved directive in recipes/build/main.adoc - include::flake/main-generated.adoc[leveloffset=+1]</p>
+</div>
+<div class="paragraph">
+<p>Unresolved directive in recipes/build/main.adoc - include::haskell-pkg/main-generated.adoc[leveloffset=+1]</p>
+</div>
+<div class="paragraph">
+<p>Unresolved directive in recipes/build/main.adoc - include::haskell-flake/main-generated.adoc[leveloffset=+1]</p>
+</div>
+<div class="paragraph">
+<p>Unresolved directive in recipes/build/main.adoc - include::env-var/main-generated.adoc[leveloffset=+1]</p>
+</div>
+<div class="paragraph">
+<p>Unresolved directive in recipes/build/main.adoc - include::nix-non-flake/main-generated.adoc[leveloffset=+1]</p>
+</div>
+<div class="paragraph">
+<p>Unresolved directive in recipes/build/main.adoc - include::non-flake/main-generated.adoc[leveloffset=+1]</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_special_situations">10.6. Special situations</h3>
+
+</div>
+<div class="sect2">
+<h3 id="_an_old_style_nix_shell_with_access_to_a_flake">10.7. An (old-style) Nix shell with access to a flake</h3>
 <div class="paragraph">
 <p>If you are maintaining legacy code,
 you may need to provide access to a flake in a <code>nix-shell</code>.
@@ -4929,7 +4960,7 @@ Hello from your flake!</pre>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2025-09-13 14:41:08 IST
+Last updated 2025-09-13 14:52:13 IST
 </div>
 </div>
 </body>
diff --git a/source/recipes/devshell/nix-non-flake/main.adoc0 b/source/recipes/devshell/nix-non-flake/main.adoc0
index 35c144b..0a2e182 100644
--- a/source/recipes/devshell/nix-non-flake/main.adoc0
+++ b/source/recipes/devshell/nix-non-flake/main.adoc0
@@ -1,3 +1,4 @@
+[#devshell-nix-non-flake]
 = Access a non-flake package (not in nixpkgs)
 
 ////
diff --git a/source/recipes/main.adoc b/source/recipes/main.adoc
index 35dbecc..7f72f9c 100644
--- a/source/recipes/main.adoc
+++ b/source/recipes/main.adoc
@@ -20,4 +20,8 @@ include::shebang/main.adoc[leveloffset=+1]
 
 include::devshell/main.adoc[leveloffset=+1]
 
+include::build/main.adoc[leveloffset=+1]
+
+== Special situations
+
 include::nix-shell/main-generated.adoc[leveloffset=+1]