async (req)=>{
    if (!val) {
      const { hostname } = new URL(req.url);
      if (!hostname.endsWith(".web.val.run")) {
        return new Response(null, {
          status: 500
        });
      }
      const subdomain = hostname.split(".")[0];
      const [author, name] = subdomain.split("-");
      val = {
        author,
        name
      };
    }
    if (!title) {
      title = `@${val.author}/${val.name}`;
    }
    const { code, readme } = await api(`/v1/alias/${val.author}/${val.name}`);
    return html(await gfm(readme, {
      title,
      favicon: "📝"
    }));
  }