1. Install and Set Up Fiamma Operator Backend Program

Steps overview:

1. Set up the environment

2. Configure environment variables

Step 1: Set up the Environment

Run the setup script to install all dependencies and prepare your environment:

./setup.sh

This script will:

• Install required packages (build-essential, gcc, g++, libssl-dev)

• Install and configure PostgreSQL

• Install Docker and Docker Compose (if not already installed)

• Install Rust and SQLx CLI

• Create a default .env file from .env_example

• Set up database and Redis containers

• Grant execute permissions for scripts

Step 2: Configure Environment Variables

• Prepare three BTC addresses to process transactions:

  • Main address (auth): The address operator deposits funds to

  • Pegin address: The address responsible for processing deposit transactions

  • Pegout address: The address responsible for processing withdraw transactions

• Note: Please use p2tr type addresses

Edit the .env file:

• vim .env

Enter the three private keys from your addresses:

BITVM_BRIDGE_OPERATOR_AUTH_SK=your_auth_private_key
BITVM_BRIDGE_OPERATOR_PEGIN_SK=your_pegin_private_key
BITVM_BRIDGE_OPERATOR_PEGOUT_SK=your_pegout_private_key

• Note: Make sure you use three different addresses to avoid large UTXOs being unintentionally locked by pre-sign transactions. While funds won't be lost, this can lower capital efficiency for the operator.