What's the current state of Solid?

Was wondering what the current state of the project is?

Any interesting project folks are working on, or initiatives on the horizon?

Is Solid in use publicly, are there Daily Active Users (DAUs) -- if so,
what order of magnitude -- under 100?  or over 1000?

What is the status of the working group, is there a timeline?

Any interesting useful work items the CG is working on, or on the horizon?

I appreciate there's been a few bits of information, calls, solid world,
github commits, press releases, and so on.  But it would be really nice if
there was some summary.

Would love to know if the chairs, or group members, have any info on the
current state of Solid.