Here are a few photos I received this morning of the fully assembled PCB, manufactured by PCBWay.
This is Revision V4.

The build quality is excellent ; clean soldering, crisp edges, and a layout that finally looks exactly as intended.

Once the board is in my hands, I will publish a detailed bring-up report for this V4 revision as for the V3 revision: power-on tests, rail validation, firmware loading, radio checks, and early measurements.

More to come.