That dev kit I bought and tried to stand up was an albatross, and I finally returned it for a refund. Now I can move forward and pivot to experiments that I can more quickly and easily put together, which is exciting A.F.
Last week I had two great calls with potential partners who are sending me new toys to play with, and helping me source more. Over the weekend I researched and purchased a couple of additional lower-cost items for solution testing. Items should start arriving at my house in a couple of days!