0x0 Messenger

Install once: npm install -g @0x0contact/c0x0 and c0x0 init

For full docs: https://0x0.contact

Check your identity

c0x0 whoami          # your number + active PINs

Create a PIN and share it

c0x0 pin new --label "for humans"     # creates e.g. "a3f9"
c0x0 pin new --expires 1h             # one-time use, auto-expires
c0x0 qr a3f9                          # print QR code — human scans with mobile app