How to use this?

[xinzhongyoumeng]

We are node operator, so we have running some op and arb nodes, use the official sequencer. We want to use Expresso to speed up L1 validation and improve security. I don't know how to connect with expresso after reading Expresso's official documentation，although the docs is tell me the Expresso is Integrated with arb chain. Now we only run the full arb/op node，we can’t run their sequencer node, because their sequencer is not open source. If you can tell me more about how to use the Expresso？