bitcoin-ruby (master) does not support openssl3.0 because of that i used fork
bundle installrackup config.ru
or via Docker
docker compose builddocker compose up
PRIVATE_KEY 'cPZzpePWADM1DBj81zb6bBkbHzA1YxFCJfq499Pnrh2XvXZbbDZE'
SENDER_ADDRESS = 'mvpip5o5aM8kfjF9zga4MC4GVqx4nMbJUY'
RECIPIENT_ADDRESS = 'mi1HqBemjjE4DqM5fd94F5Nw2FhChmxs5C'