It’s indeed been a while since it’s been last updated, unfortunately. Seeing as other projects had/have higher priority (Electron, dashboard, etc) the open source cloud got backlogged.
Seeing as it’s open source though, the community is free to edit it in any way and pull request for features are always highly welcome.
As far as feature parity goes, not quite sure where it stands, but I’m pretty sure the ‘real’ cloud is a bit more advanced. Last I heard was that functions/variables/publishes were working, but subscribing, unfortunately, was not. That could’ve been added in the mean time, but I haven’t really played around with it much since. There’s also not the convenience of the dashboard/console and/or the web IDE if those are things you’re interested in.
But, as mentioned, it’s open source, so feel free to play around with it and add features as you see fit.
What motivates you into wanting to set up a cloud of your own?