Deleting a beacon proxy instance?

Support Contracts
1

Given a beacon proxy setup, where the proxy contract (proxy instances) are ownable, how can the owner "delete" or "burn" their proxy instance?

2

If you want the proxy instance to actually be deleted you need to have a function in the implementation that invokes selfdestruct. This is usually dangerous to have in the implementation because you never want the implementation itself to be destroyed, so you should use a modifier like this:

contract DestroyableImpl {
    address immutable self = address(this);

    modifier onlyDelegated() {
        require(address(this) != self);
        _;
    }

    function delete() public onlyDelegated {
        // TODO: require(msg.sender == owner);
        selfdestruct(msg.sender);
    }
}