diff --git a/ventures/havre/index.html b/ventures/havre/index.html
index 8df3166..a1cff52 100644
--- a/ventures/havre/index.html
+++ b/ventures/havre/index.html
@@ -29,7 +29,7 @@
 <header class="mast" id="top">
   <h1>HAVRE</h1>
   <p class="motto">a harbor for characters. <br>talk to venice characters on your own key. <br>no account. no server. nothing kept but what you keep.</p>
-  <nav class="nav" aria-label="On this page"><a href="#how">how it works</a> / <a href="#agents">for agents</a> / <a href="#costs">costs</a> / <a href="#plans">early access</a></nav>
+  <nav class="nav" aria-label="On this page"><a href="#how">how it works</a> / <a href="#agents">for agents</a> / <a href="#costs">costs</a> / <a href="#plans">early access</a> / <a href="open/">open studio (beta)</a></nav>
 </header>
 
 <form class="keybar" id="keyform" autocomplete="off" aria-label="Your Venice API key">
diff --git a/ventures/havre/open/havre-key.js b/ventures/havre/open/havre-key.js
new file mode 100644
index 0000000..f0522a4
--- /dev/null
+++ b/ventures/havre/open/havre-key.js
@@ -0,0 +1,8 @@
+(function () {
+  try {
+    if (sessionStorage.getItem("venice-auth")) return;
+    var raw = sessionStorage.getItem("havre.key") || localStorage.getItem("havre.key");
+    var key = raw ? JSON.parse(raw) : "";
+    if (typeof key === "string" && key) sessionStorage.setItem("venice-auth", key);
+  } catch (e) { /* no key then */ }
+})();
diff --git a/ventures/havre/open/index.html b/ventures/havre/open/index.html
index e8357ed..e52ecae 100644
--- a/ventures/havre/open/index.html
+++ b/ventures/havre/open/index.html
@@ -1,6 +1,6 @@
 <!doctype html>
 <html lang="en">
-  <head>
+  <head><script src="/open/havre-key.js"></script>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
     <meta name="theme-color" content="#0a0a0a" />
diff --git a/ventures/havre/shots/desktop.png b/ventures/havre/shots/desktop.png
index 2bf2f5d..70c1aab 100644
Binary files a/ventures/havre/shots/desktop.png and b/ventures/havre/shots/desktop.png differ
diff --git a/ventures/havre/tools/open.sh b/ventures/havre/tools/open.sh
index 74efd73..9cff705 100644
--- a/ventures/havre/tools/open.sh
+++ b/ventures/havre/tools/open.sh
@@ -10,6 +10,19 @@ git -C "$src" checkout -q "$OV_REF"
 (cd "$src" && npm ci --silent --no-audit --no-fund >/dev/null && npx vite build --base=/open/ >/dev/null)
 rm -rf open
 cp -R "$src/dist" open
+# Havre's key, handed to openvenice: same origin, so it's only a copy between two storage slots in this browser
+cat > open/havre-key.js <<'EOF'
+(function () {
+  try {
+    if (sessionStorage.getItem("venice-auth")) return;
+    var raw = sessionStorage.getItem("havre.key") || localStorage.getItem("havre.key");
+    var key = raw ? JSON.parse(raw) : "";
+    if (typeof key === "string" && key) sessionStorage.setItem("venice-auth", key);
+  } catch (e) { /* no key then */ }
+})();
+EOF
+sed -i.bak 's|<head>|<head><script src="/open/havre-key.js"></script>|' open/index.html && rm -f open/index.html.bak
+grep -q havre-key.js open/index.html
 cat > open/LICENSE.txt <<EOF
 openvenice by nikshepsvn, MIT License: https://github.com/nikshepsvn/openvenice
 Built into Havre at /open/ from commit $OV_REF, unchanged.