diff --git a/docs/2023-06-25-useful-tools.html b/docs/2023-06-25-useful-tools.html
index 54943cb..810d7ad 100644
--- a/docs/2023-06-25-useful-tools.html
+++ b/docs/2023-06-25-useful-tools.html
@@ -787,6 +787,14 @@
       ></a>
     </h2>
     <p>nix/go/rust/pipx &gt; MacPorts, HomeBrew</p>
+    <p>Quirks:</p>
+    <div class="highlight highlight-source-shell">
+      <pre><span class="pl-c"><span class="pl-c">#</span> Add to ~/.zshrc</span>
+<span class="pl-c"><span class="pl-c">#</span> https://github.com/NixOS/nix/issues/3616</span>
+<span class="pl-k">if</span> [ <span class="pl-k">-e</span> <span class="pl-s"><span class="pl-pds">'</span>/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh<span class="pl-pds">'</span></span> ]<span class="pl-k">;</span> <span class="pl-k">then</span>
+  <span class="pl-c1">source</span> <span class="pl-s"><span class="pl-pds">'</span>/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh<span class="pl-pds">'</span></span>
+<span class="pl-k">fi</span></pre>
+    </div>
     <p>Don't install:</p>
     <ul>
       <li>Postman</li>
diff --git a/posts/2023-06-25-useful-tools.md b/posts/2023-06-25-useful-tools.md
index 3b28874..45d64d0 100644
--- a/posts/2023-06-25-useful-tools.md
+++ b/posts/2023-06-25-useful-tools.md
@@ -195,6 +195,16 @@ Memory
 
 nix/go/rust/pipx > MacPorts, HomeBrew
 
+Quirks:
+
+```sh
+# Add to ~/.zshrc
+# https://github.com/NixOS/nix/issues/3616
+if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
+  source '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+fi
+```
+
 Don't install:
 
 - Postman