This is the canonical staking contract designed for Uniswap V3.
The staker at tag v1.0.0 is deployed and verified on Etherscan for on all networks at the address: 0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d
$ yarn
$ yarn test
# if gas snapshots need to be updated
$ UPDATE_SNAPSHOT=1 yarn test
$ yarn size-contracts