To stake Ethereum, validator nodes are required to connect to Beacon nodes. The Validator and the beacon node are referred to as consensus layer clients. Launchnodes provide the Prysmatic Validator client and it connects to a Launchnodes Beacon Node (with Flashbots MEV Enabled) by default or clients can connect their Validator nodes to their own Beacon Nodes. The Beacon node Consensus layer client needs to connect to an execution layer client in order to synchronise, the consensus layer client that is used is Geth. The diagram provides a high level architecture of how the nodes work.