The march to having something we're ready to productize continue.  X1P-002-C01 (that's the third revision of the mainboard, which I talked about in the previous update), with the new buck converters and the RP2040, came back on my desk last week, and it seems to basically have worked on the first go.  It looks like there will be a few changes to passives -- it turns out that these Silergy regulators are really finicky -- but everything seems to work fine other than that.  Below, a "half-build" of an X1P-002-C01 (no LAN9514, yes all the new power supplies, yes RP2040) happily blinks an Andon Board:

One of my tricks of the trade for making sure that I actually make it through all the things that I needed to check out on a board is that I do a checkout spreadsheet, with all the tests I care about.  That way, when I think of more tests, there's an obvious place to write them down so I don't forget, and I can also take notes on a debug if things aren't going the way I wanted.  Here's the final tally for the X1P-002-C01 checkout:

There's been kind of exciting software work recently too, but that's food for another post.  Maybe later this weekend...