Go Ethereum (Geth) is a robust Golang-based execution layer that implements the Ethereum protocol, providing a comprehensive toolkit for developers and users to interact with the Ethereum blockchain. As the primary Ethereum CLI client, Geth facilitates operations across main, test, and private networks, acting as a full, archive, or light node with JSON RPC endpoints over HTTP, WebSocket, and IPC. The project includes various command-line tools such as Clef for signing, devp2p for network layer interaction, and Abigen for Go package generation from Ethereum contract definitions. It supports straightforward installation and building processes, requiring Go v1.22+ and a C compiler. Geth enables seamless private network configurations and offers Docker solutions for rapid deployment. Developers benefit from programmatic interfacing through JSON-RPC APIs and extensive customization via configuration files. Contributing to the project involves adhering to Go formatting and documentation standards and engaging with the developer community for guidance on substantial modifications. Geth’s codebase is governed by GNU licenses, ensuring open-source accessibility and collaboration.