Krux has the user take a photo & uses that image as data for additional entropy.
Thanks for response. Could you head me to the proper source of this information? I've sieved their GitHub account but didn't find anything relevant.
I'm an owner of Passport 2 and looking for the decent companion to my wallet to use it as a cosigner in multisig.
Krux might be viewed as candidate if it would meet my requirements.