This is an important point some people commenting here don't get. You can write whatever contract you like, but provisions of a contract that violate or attempt

This is an important point some people commenting here don't get. You can write whatever contract you like, but provisions of a contract that violate or attempt to nullify the law are void on their face. And having a contract does not mean you can break other laws to enforce the contract or remedy a breach. Acting in bad faith, like planting a time bomb in the code, is likely to void the entire contract.