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Angstrom L2

This repository contains the core contracts for the L2 Angstrom hook.

Build

$ forge build

Test

$ forge test

Deployment

Prerequisites

Vanity Address Mining

We use vanity-miner-rust to mine a salt for CREATE3 deployment that results in a desired address property (e.g., leading zeros).

$ cargo run --release -- --owner <DEPLOYER_ADDRESS> --zeros 6

This outputs a DEPLOY_TOKEN_ID and DEPLOY_TOKEN_NONCE used by the deploy script.

Signing EIP-712 permit for giving up token

To sign the permit to give up vanity token so that we can call SUB_ZERO.claimGivenUpWithSig, use the following command:

$ cast wallet sign --data --from-file script/eip712.json

Adjust the script/eip712.json file with the correct DEPLOY_TOKEN_ID and nonce accordingly. With the output signature, update the signature in the deployment script.

Network Configuration

Reference script/config.toml — currently configured for Base and Unichain with their respective Uniswap V4 PoolManager addresses.

Deploy Factory

The factory deployment script (script/AngstromL2Factory.s.sol) handles:

  • Deploying the Huff-based hook address miner
  • Claiming the vanity token from Sub Zero (if not already minted)
  • Deploying AngstromL2Factory via SUB_ZERO.deploy()
$ forge script script/AngstromL2Factory.s.sol --broadcast --sender <SENDER>

Security

  • See audit for a list of audits done previously
  • See SECURITY.md for security policies and disclosures.