Thanks for the episode. I agree, once start adding some advanced libraries you run out of flash. My conclusion is that is a cute little module but pretty underpowered in most hobby diy situations.
I dont understand why the designer have cut off 15% of the pin holes. Makes more sense to have the solder pads extended towards the board edge. Similar to NANO 33 BLE that have castellated holes which enables you to solder it like a smd.