How Can Gasless Transaction Models Be Implemented for Options Trading without Centralizing the System?

Gasless transactions, or "meta-transactions," can be implemented by having a third-party relayer pay the gas fee on behalf of the user. In this model, a user signs a message containing the transaction details with their private key, and the relayer submits this signed message to the blockchain, paying the gas.

To avoid centralization, a decentralized network of relayers can be used, where relayers compete to process transactions. The relayer can be compensated either through a fee taken from the transaction itself (e.g. a small portion of the option premium) or through a separate payment channel, preserving the decentralized nature of the interaction.