HODL_MFER on Nostr: Speaking of POW, it would be really cool if we could sign Nostr messages with a ...

Speaking of POW, it would be really cool if we could sign Nostr messages with a Bitcoin wallet like ColdCard. Why?

Many applications:
- prove it's you
- get access to actions/roles: write/admin in nostr collaborative apps
- to send and read encrypted messages
- approve multisig actions