be.com/embed/kYTgGtJjSro?si=XmW-_CAvCfB5e269"
      title="YouTube video player" frameborder="0"
      allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
      referrerpolicy="strict-origin-when-cross-origin"
      allowfullscreen
      >
  </iframe>

  <br/>
  <br/>

  üì¶ Install our useful Rust command line apps using <code>cargo install r3bl-cmdr</code>
  (they are from the <a href="https://github.com/r3bl-org/r3bl-open-core">r3bl-open-core<