@tekka
Is there any changelog to it also or it was just made officially available again?
although last online status was 22 AUG 2020, so anyone else can confirm anything about it?
I'd just be cautious without confirmation.
Just for completeness: the right way to do this is to add the json under ~/.platformio/boards and the other files as described in https://community.platformio.org/t/how-use-a-same-chip-but-with-different-environment/18082/4