The linked medium article is 2017, should probably be noted in the post. Seems the editor is not available for download in 2020. One of their criteria is a little questionable:
> Has a design that doesn’t feel like an afterthought
Of course, who is going to want a design that feels like an afterthought? But, this doesn't define what they do want, just what they don't.
It could be argued that language-specific efforts such as this are redundant in the face of more generalized solutions like VS Code or Sublime Text, but I think they’re pretty great at spurring innovation and raising the bar for quality. Chime looks great!