diff --git a/pyscriptjs/examples/antigravity.html b/pyscriptjs/examples/antigravity.html
index 7c2bfa4..4efb7b2 100644
--- a/pyscriptjs/examples/antigravity.html
+++ b/pyscriptjs/examples/antigravity.html
@@ -5,68 +5,16 @@
 
     <link rel="stylesheet" href="../build/pyscript.css" />
     <script defer src="../build/pyscript.js"></script>
-
-    <style>
-    .loading {
-      display: inline-block;
-      width: 50px;
-      height: 50px;
-      border: 3px solid rgba(255, 255, 255, 0.3);
-      border-radius: 50%;
-      border-top-color: black;
-      animation: spin 1s ease-in-out infinite;
-    }
-
-    @keyframes spin {
-      to {
-        transform: rotate(360deg);
-      }
-    }
-    </style>
-
-    </head>
-    <body>
-      <b>
-        Based on xkcd: antigravity https://xkcd.com/353/.
-      </b>
-      <div style="display: flex; flex-direction: row">
-        <div id="antigravity" style="width: 400px; height: 400px">
-          <div class="loading"></div>
-        </div>
-      </div>
-
-<py-script output="antigravity">
-import random
-
-from js import document, setInterval
-from pyodide import create_proxy
-from pyodide.http import open_url
-
-class Antigravity():
-
-    def __init__(self, node):
-        self.node = node
-        self.xoffset, self.yoffset = 0, 0
-        setInterval(create_proxy(self.move), 10)
-
-    def move(self):
-        char = document.getElementById('python')
-        console.log(char)
-        char.setAttribute('transform', f'translate({self.xoffset}, {-self.yoffset})')
-        self.xoffset += random.normalvariate(0, 1)/20
-        if self.yoffset < 50:
-            self.yoffset += 0.1
-        else:
-            self.yoffset += random.normalvariate(0, 1)/20
-
-    def _repr_svg_(self):
-        return open_url('./antigravity.svg').read()
-
-node = document.getElementById('antigravity')
-node.replaceChildren()
-
-Antigravity(node)
-</py-script>
-
-</body>
+  </head>
+  <py-env>
+- paths:
+  - /antigravity.py
+  </py-env>
+  <body>
+    <b>Based on xkcd: antigravity https://xkcd.com/353/.</b>
+    <py-script>
+import antigravity
+antigravity.fly()
+    </py-script>
+  </body>
 </html>
diff --git a/pyscriptjs/examples/antigravity.py b/pyscriptjs/examples/antigravity.py
new file mode 100644
index 0000000..ac4404e
--- /dev/null
+++ b/pyscriptjs/examples/antigravity.py
@@ -0,0 +1,39 @@
+import random
+import sys
+
+from js import document, DOMParser, setInterval
+from pyodide import create_proxy
+from pyodide.http import open_url
+
+class Antigravity():
+
+    url = './antigravity.svg'
+    
+    def __init__(self, target=None, interval=10, append=True, fly=False):
+        target = target or sys.stdout._out
+        self.target = document.getElementById(target) if isinstance(target, str) else target
+        doc = DOMParser.new().parseFromString(open_url(self.url).read(), "image/svg+xml")
+        self.node = doc.documentElement
+        if append:
+            self.target.append(self.node)
+        else:
+            self.target.replaceChildren(self.node)
+        self.xoffset, self.yoffset = 0, 0
+        self.interval = interval
+        if fly:
+            self.fly()
+
+    def fly(self):
+        setInterval(create_proxy(self.move), self.interval)
+
+    def move(self):
+        char = self.node.getElementsByTagName('g')[1]
+        char.setAttribute('transform', f'translate({self.xoffset}, {-self.yoffset})')
+        self.xoffset += random.normalvariate(0, 1)/20
+        if self.yoffset < 50:
+            self.yoffset += 0.1
+        else:
+            self.yoffset += random.normalvariate(0, 1)/20
+
+_auto = Antigravity(append=True)
+fly = _auto.fly
diff --git a/pyscriptjs/examples/repl.html b/pyscriptjs/examples/repl.html
index 806a73c..4e50a8b 100644
--- a/pyscriptjs/examples/repl.html
+++ b/pyscriptjs/examples/repl.html
@@ -4,14 +4,18 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width,initial-scale=1" />
 
-    <title>Svelte app</title>
+    <title>REPL</title>
 
     <link rel="icon" type="image/png" href="favicon.png" />
     <link rel="stylesheet" href="../build/pyscript.css" />
-    
     <script defer src="../build/pyscript.js"></script>
   </head>
 
+  <py-env>
+- paths:
+  - /antigravity.py
+  </py-env>
+
   <body>
     <div>
       <py-repl id="my-repl" auto-generate="true"> </py-repl>
diff --git a/pyscriptjs/examples/repl2.html b/pyscriptjs/examples/repl2.html
index 39c595e..1f9becc 100644
--- a/pyscriptjs/examples/repl2.html
+++ b/pyscriptjs/examples/repl2.html
@@ -17,6 +17,7 @@
 - numpy
 - paths:
   - /utils.py
+  - /antigravity.py
   </py-env>
 
   <body>
