It's a completely different and unrelated project. I don't run a Steem node, I haven't looked at the code, I have no idea whether it will succeed in any way. But I do enjoy a good Markdown-based blogging platform, which is why I'm using this for the moment.
Re: the Monero GUI, as Monero is an unfunded, open-source project you are welcome to help "finish the damn GUI wallet". I look forward to your first pull request.