Not even FOSS, just Source Viewable.
Everyone is allowed to choose their own license for their work, but everyone is also allowed to choose what licenses they want their purchases to be under. I will nevwr buy another coinkite thing, sadly... 

 Blockclock is closed source AFAIK 

 Ok! I was thinking of the coldcard. When they closed the code on that is when I gave up on them... 

 Coinkite website says many of the products are open source. Not the coldcard or blockclock? Wonder which ones are? 

 Coldcard is “source available” not open source (you can’t use it for “commercial purposes”)