<html>
  <head>
    <title>The Cat Computing Universe: Demo</title>
    <meta charset="utf-8">
    <link rel="icon" type="image/x-icon" href="./favicon.png">
    <link rel="stylesheet" href="https://pyscript.net/alpha/pyscript.css" />
    <script defer src="https://pyscript.net/alpha/pyscript.js"></script>
    <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
    <link rel="stylesheet" href="demo.css" />	
    <py-env>
      - matplotlib
    </py-env>
    </head>
    <body>
      <py-repl id="o