This is how easy ultra safe ColdCard HSM/remote signed coinjoin will work:
https://blossom.primal.net/9d83f6cb49e2cb0e395c9d45f7e0828a3c2a32b243ab31774cd8efce58e31663.png
https://blossom.primal.n...
Also I accidentally typed a reply to this that was intended for CoinKite, I deleted but might still be on some relays. That was an error.