* Takes open source to the next level: The open source code can be viewed, verified and compiled directly from the device itself.
This is not correct. Coldcard is not open source, but rather, it is "source verifiable".
You can see their license here:
https://github.com/Coldcard/firmware/blob/master/COPYING-CCYou can understand why this distinction is important here:
https://nitter.cz/sethforprivacy/status/1651039483419058177Code that is not actually open source is bad for the product and bad for the ecosystem. If no one is actually allowed to use their code in other products, then you are going to have far fewer sets of eyes on the code since there is far less incentive for people to spend their time examining it. Open source code encourages competition which furthers development, which ultimately is good for bitcoin.
I'm getting fed up of various projects claiming to be open source when they aren't, or claiming their not-open-source license is just as good as open source when it isn't. Open source has a very specific meaning and is very important to the ecosystem. Coldcard is not open source.
When coldcard was created, they came up with an unmatched security, right? It's true that they copied others and use their work but Coldcard still came up with more unique product that no one has created before. At the same time, we have to keep in mind that bitcoin hardware wallet is a business. When ColdCard left their code open-source, The Passport Foundation copied them, improved some UI details if I am not wrong and become a Coldcard's competitor. This means loss of customers, loss of sales and all these because someone copied your code and put it in a new design.
Let's say ColdCard left their code open-source and there comes someone with ten times more money for marketing, manufacturing and so on. They take ColdCard's open-source wallet, create a new hardware wallet, spend ten times more in marketing than coldcard and will build a great business on ColdCard's work.
I don't see anything wrong with
Verifiable Source Code. It's a business, I think it will even demotivate people to start a business if their work might be copied super easily. I don't think anyone shares the belief of Nikola Tesla in a modern capitalism where you are nothing without money.