Yup, I’ve eaten up like 4 days on this thing.
But, fixing platformio support (at least on my system seems like a win.)
If Swap in my copy of the git repo, in platformio.ini, instead of the seeed official, the basic zephyr Blinky, should build after a “clean”.
Otherwise it’ll potentially pull in a fresh copy of the broken official version of the repo during the platform io run/build