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I want to have 3 different brands of open source hardware wallets to store altcoins and spread risk.
I currently use the Trezor One and just placed an order for the BitBox02. And need a third one of different brand.
I have noticed that Keystone 3 pro uses an embedded system, not the previous Android OS.
I am not sure that whether Keystone 3 will be open source like Trezor Safe 3 or Bitbox02?
Or just wait a few months?