Blockstream jade license is a realtively standard FOSS license including MIT and GPL3: https://github.com/Blockstream/jade/

Coldcard has a common clause license that seems to contradict itself by stating you can modify and sell it at the top (much like a GPL would) but then goes on to forbid you from selling the product towards the bottom: https://github.com/Coldcard/firmware/blob/master/COPYING-CC