The contracts are copied and revised from https://github.com/Phala-Network/phat-offchain-rollup/tree/main/evm (commit: 7dc2f9bc8917f84c2a855a2df2a2373897dd1b1f).
Try running some of the following tasks:
# install dependencies
yarn
export MUMBAI_API=https://polygon-mumbai.g.alchemy.com/v2/<api-key>
export MUMBAI_SK=<evm-account-sk>
# compile contracts
npx hardhat compile
# deploy contracts
npx hardhat run --network mumbai ./scripts/deploy-test.ts
# Deployed { receiver: '0x93891cb936B62806300aC687e12d112813b483C1' }
# Check our example deployment in <https://mumbai.polygonscan.com/address/0x93891cb936B62806300aC687e12d112813b483C1>
# Optional: verify contract
npx hardhat verify --network mumbai --constructor-args arguments.js 0x93891cb936B62806300aC687e12d112813b483C1