Looks promising. There are plenty of issues with Disqus and running a full Discourse instance just for comments is probably overkill.
This is my current low-tech solution on https://unop.uk that works on any page (or any site for that matter):
<a href="javascript:window.location=%22https://news.ycombinator.com/submitlink?u=%22+encodeURIComponent(document.location)+%22&t=%22+encodeURIComponent(document.title)">Submit / Comment on Hacker News</a>