diff --git a/evergreen-business-plan/index.html b/evergreen-business-plan/index.html
index 70608b8..6d4a913 100644
--- a/evergreen-business-plan/index.html
+++ b/evergreen-business-plan/index.html
@@ -443,7 +443,7 @@
       <a href="#safety">Safety</a>
       <a href="#ask">The ask</a>
     </nav>
-    <a class="cta" href="https://evergreen-prototype.mosaic.site" target="_blank" rel="noopener">Live&nbsp;demo&nbsp;↗</a>
+    <a class="cta" href="https://evergreen-prototype.mosaic.site/?demo=family" target="_blank" rel="noopener">Live&nbsp;demo&nbsp;↗</a>
   </div>
 </div>
 
@@ -586,7 +586,7 @@
     <div class="callout" style="margin-top:18px">
       <small>The honest status</small>
       <h3>You can call Iris today — what's left before launch is the licensed safety desk and the legal wrapper, not the product.</h3>
-      <p>Live in a working prototype — <a href="https://evergreen-prototype.mosaic.site" target="_blank" rel="noopener">try the interactive demo ↗</a> — with a public overview site. <b>No paying customers yet, and the monitoring partner isn't contracted</b> — but everything the family <i>experiences</i> is real and running.</p>
+      <p>Live in a working prototype — <a href="https://evergreen-prototype.mosaic.site/?demo=family" target="_blank" rel="noopener">try the interactive demo ↗</a> — with a public overview site. <b>No paying customers yet, and the monitoring partner isn't contracted</b> — but everything the family <i>experiences</i> is real and running.</p>
     </div>
   </div>
 </section>
diff --git a/evergreen-business-plan/source.html b/evergreen-business-plan/source.html
index 70608b8..6d4a913 100644
--- a/evergreen-business-plan/source.html
+++ b/evergreen-business-plan/source.html
@@ -443,7 +443,7 @@
       <a href="#safety">Safety</a>
       <a href="#ask">The ask</a>
     </nav>
-    <a class="cta" href="https://evergreen-prototype.mosaic.site" target="_blank" rel="noopener">Live&nbsp;demo&nbsp;↗</a>
+    <a class="cta" href="https://evergreen-prototype.mosaic.site/?demo=family" target="_blank" rel="noopener">Live&nbsp;demo&nbsp;↗</a>
   </div>
 </div>
 
@@ -586,7 +586,7 @@
     <div class="callout" style="margin-top:18px">
       <small>The honest status</small>
       <h3>You can call Iris today — what's left before launch is the licensed safety desk and the legal wrapper, not the product.</h3>
-      <p>Live in a working prototype — <a href="https://evergreen-prototype.mosaic.site" target="_blank" rel="noopener">try the interactive demo ↗</a> — with a public overview site. <b>No paying customers yet, and the monitoring partner isn't contracted</b> — but everything the family <i>experiences</i> is real and running.</p>
+      <p>Live in a working prototype — <a href="https://evergreen-prototype.mosaic.site/?demo=family" target="_blank" rel="noopener">try the interactive demo ↗</a> — with a public overview site. <b>No paying customers yet, and the monitoring partner isn't contracted</b> — but everything the family <i>experiences</i> is real and running.</p>
     </div>
   </div>
 </section>
diff --git a/index.html b/index.html
index 06a0c8e..da6ef4e 100644
--- a/index.html
+++ b/index.html
@@ -131,7 +131,7 @@
           <div class="updated">Updated 27 Aug 2026</div>
         </div>
         <div class="actions">
-          <a class="btn demo" href="https://evergreen-prototype.mosaic.site" target="_blank" rel="noopener" aria-label="Open the live Evergreen interactive prototype in a new tab">Live&nbsp;demo&nbsp;<span aria-hidden="true">↗</span></a>
+          <a class="btn demo" href="https://evergreen-prototype.mosaic.site/?demo=family" target="_blank" rel="noopener" aria-label="Open the live Evergreen interactive prototype in a new tab">Live&nbsp;demo&nbsp;<span aria-hidden="true">↗</span></a>
           <a class="btn open" href="./evergreen-business-plan/" aria-label="Open the Evergreen full business plan">Open&nbsp;<span aria-hidden="true">→</span></a>
           <a class="btn sum" href="./evergreen-business-plan/summary.html" aria-label="Evergreen executive summary">Summary</a>
           <a class="btn pdf" href="./evergreen-business-plan/Evergreen-Business-Plan.pdf" aria-label="Download the Evergreen plan as PDF">PDF&nbsp;<span aria-hidden="true">↓</span></a>