ERC721Multiplier

With the exception of the VotePower contract, the ERC721Multiplier does not increase voting power, but rather directly boosts your rewards. The ERC721Multiplier contract allows users to lock and unlock their NFTs, each of which is associated with a specific duration and multiplier, much like a coupon. If a user locks an NFT before claiming rewards, they will receive additional rewards based on the multiplier of the locked NFT.

Not all DAOs follow the same logic for ERC721Multiplier. In the case of VERA DAO, it employs a custom contract called VeraERC721Multiplier. This implementation reduces the multiplier by 10% each time the token is unlocked. Additionally, it considers the average user balance when calculating extra rewards. You can deploy your own version of ERC721Multiplier by implementing the IAbstractERC721Multiplier interface. Following that, you can create a proposal to change the ERC721Multiplier in the DAO as in the example below.

function setNftMultiplierAddress(IAbstractERC721Multiplier nftMultiplier) external {
    require(
        nftMultiplier.supportsInterface(type(IAbstractERC721Multiplier).interfaceId),
        "Not a ERC721Multiplier"
    );

    IGovPool.ProposalAction[] memory actionsFor = new IGovPool.ProposalAction[](1);
    actionsFor[0] = IGovPool.ProposalAction({
        executor: address(govPool),
        value: 0,
        data: abi.encodeWithSelector(IGovPool.setNftMultiplierAddress.selector, nftMultiplier)
    });

    IGovPool.ProposalAction[] memory actionsAgainst = new IGovPool.ProposalAction[](0);

    govPool.createProposal("Set ERC721Multiplier", actionsFor, actionsAgainst);
}