Custom domain

You can easily create a new page on your own domain i.e. yourdomain.com/quests and mirror Sesame Lab's hosted landing page on that page using an iframe.
Let’s say that your Community homepage is https://sesamelabs.xyz/sesame/?tab=home. If you'd like to serve it from your own domain, i.e. yourdomain.xyz/quests add an HTML page on your domain that looks something like this.
<!doctype html>
<html lang="en">
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; minimum-scale=1.0;" />
<link rel="icon" type="image/png" href="/exploding-head.png">
<title>Sesame Labs Quests</title>
* {margin: 0; padding: 0; border: none}
html, body {overflow: hidden}
html, body, iframe {height: 100%; width: 100%}
<iframe id="sesame-app" src="https://sesamelabs.xyz/sesame/?tab=home" frameborder="0"></iframe>
Note: Set the title of the page attribute, add your own favicon (link href), and update the iframe src attribute to the Sesame Labs's community homepage url.