So after many months of shipping difficulties I now have this Tang Nano 9k fpga dev board stick plus hardwired screen. Here's an Amaranth demo by @whitequark which I modified to make the little square move on it's own. Goal is to get my Pocket cores (https://pocket.runhello.com) in some kinda build infrastructure where they can all cross-build for either the Pocket or for this thing (and ideally also for the Colorlight board I've got).