And who currently use these? 

 A lot.. https://bitcointalk.org/index.php?topic=5304483.0 

 Fuck shit biscuits lmfao  

 Fuck shit biscuits lmfao  nostr.fmt.wiz.biz 

 Whoa!!!!!!!

https://media1.tenor.com/m/xqYA4RMv920AAAAC/holy-fuck-dude-eric-cartman.gif 

 That's really interesting. Thank you.

On an other note, do you know what this means? I've always wondered what kind of government deal was taken by coldcard with the government to protect others from selling their code.

(I mean the MIT + CC)

https://image.nostr.build/87f3a840f79f6d338fa51dd73bd03ce15a7a0840d1752b7a2aa6bac9585008bf.jpg 

 It doesn’t meet the definition of open source (commercial use is not permitted for Coldcard firmware). The term source available is used instead 

 I understand that but I was asking more precisely which understand that but I was asking more precisely what this acronym meant. I tought it could give me a clearer picture of the specific laws that are used. 

 MIT+CC is MIT license with Commons Clause 

 Any thoughts on that? Curious to hear from others with knowledge in that field.

https://image.nostr.build/f2e745d2279c8bfb0684745a7019df493c82399c079f3c4bf7b39aeeee074486.jpg

nostr:nevent1qqs89yrw7fgvzccfqrqc8sdz6g8ked78ft4f7l5acs0h3zfc3d453uqpvemhxue69uhkv6tvw3jhytnwdaehgu3wwa5kuef0dec82c33wcc8gen2wc6kz6rjxd3nyd3sdf685ertx4mngwrtwfjhyunwddnnsendvdhxxdtvwpnh26esw9jxzvp5v4ch5mfnd5ek20mzwfhkzerrv9ehg0t5wf6k2q3q2262qa4uhw7u8gdwlgmntqtv7aye8vdcmvszkqwgs0zchel6mz7sxpqqqqqqzams052 

 Those are secp256r1 not k1. What role do they play in Bitcoin?

Where are the details on that exploit?