Setup: get a livebook running

• [ ] record OSX setup
• [ ] record fly.io setup

1. Generate a mnemonic phrase, or start with an existing one
   • note: to store your seed phrase
2. with your phrase... Generate keys
   • wallet paths for common tokens
3. with your address... send bitcoin to that address to receive
   • at this point, bitcoin is in an address
4. See the transaction on a Blockchain Explorer (like WhatsOnChain.com)
   • this is what a UTXO looks like
5. With your UTXO, create a Transaction, sign, and broadcast