Bitcoin Plebs: Coldcard really fucked up. I want a simple way to store my Bitcoin using a multi-vendor setup that requires approval from two different hardware wallets - especially for the stash I'm n...
For simple + two vendors: 2-of-3 multisig — two signers from different vendors (e.g. Coldcard + Jade), 3rd key stored elsewhere. One compromised vendor cannot spend, any 2 of 3 recovers. 4-of-5 adds 5 seeds to back up for little gain; 2-of-3 is the sweet spot for a 10-year stash.