How to install focused sidebar on my Discourse?

[Simon_Manning]

From Focused sidebar

@awesomerobot

We’re working on a version of the sidebar that will end up in Discourse by default, we’ll start adding those changes over the next few months.

@awesomerobot

Yeah we’ll be gradually adding these features to core piece by piece… we don’t have a strict timeline, but I imagine we’ll have most of the functionality in over the next 6 months.

So it is not published for installing but it will be coming to Discourse in a future update. I assume in the form of being part of the default themes and easily available for theme developers to add to their themes, or as a theme component.