I ended up using the 'PipeWire & WirePlumber & blueman-git PPA for Ubuntu
(>= 18.04)' after many attempts at the meson build.
That's what got me going as well -- or at least part of that. In an earlier post in this thread, I summarized my steps. But I didn't do the WirePlumber thing. So I went searching, based on your comment and found instructions at:
Haven't tried those instructions yet. I'm checking them out now. Was that where you found the "how-to"?