"How to write your own HTTP client using curl" is the vibe I get from this.<p>The library is the client here, the blog post is just about building an UI for it.
I'm personally more excited about torrent libraries that run inside webbrowsers. E.g.<p><a href="https://github.com/webtorrent/webtorrent" rel="nofollow">https://github.com/webtorrent/webtorrent</a>
I did that more than 10 years ago using libtorrent. In 2018, an article on how to write a bittorrent client using an existing library is not that cool any more.