Bor is the official Golang implementation of the Polygon Proof-of-Stake (PoS) blockchain, forked from Geth and compatible with the Ethereum Virtual Machine (EVM) up to the London fork. It facilitates the deployment and operation across Polygon’s Mainnet, Amoy, and Mumbai testnet. Users can install Bor effortlessly via packaging scripts, which automate the creation of a dedicated user, installation of binaries, configuration, and setup of systemd services. Bor’s architecture supports validator, sentry, and archive nodes, with detailed installation guidelines available. Developers can build Bor from the source using Go (1.19+) and a C compiler, ensuring an adaptable environment for both standard operations and testing. The new command line interface introduced post version 0.3.0 aligns closely with previous versions, offering enhanced utility configurations and operational insights. Contributing to Bor is streamlined with guidelines emphasizing quality, testing, and maintainability. The project is open to global contributions, with licensing under GNU Lesser General Public License v3.0 and GNU General Public License v3.0. Active community engagement is encouraged via Polygon’s forums and Discord channels.