BMC (Baseboard Management Controller) is the intelligent controller embedded into complex data center equipment like servers, storage systems, and network switches allowing systems to be managed efficiently. The firmware stack for these controllers has been proprietary and closed until recent times. This situation has been changed with the start of the OpenBMC project. This talk is aimed at introducing OpenBMC as an open source alternative firmware stack for the audience. In this talk, we will go over typical at-scale data center use cases for system management, understand the challenges/limitations in proprietary source base, look at the history/evolution of OpenBMC project.