Whoops. There is a bug in the Seedbucks contract.

I used ECDSA.tryRecover which returns the zero address when the signature is incorrect.

When I renounced ownership, I set the address to the zero address. This means that you can mint, forever, with an invalid signature. I apologize – I wrote the contract quickly.

like a drama I know you created the contract and deliberately prepared the bug, and assume you are not the owner and I also know, next you will create a new contract and make an airdrop for SBUX holders
👏👏