Step 1: Check out the release/mainnet branch
Step 2: Build
cargo build --release
Step 3: Run
./target/release/state-reconstruct reconstruct l1 --btc-url <BITCOIN_RPC_URL> --da-url <POLYGON_DA_URL>
Note: Please replace <BITCOIN_RPC_URL> and <POLYGON_DA_URL> with your respective RPC URLs. You can create free accounts on Quicknode and Infura to obtain these.