Microsoft has announced Project Mu, an open-sourced release of the Unified Extensible Firmware Interface (UEFI) that will allow firmware to be kept up-to-date. Project Mu will support Firmware as a Service (FaaS) which is similar to the Microsoft Windows as a Service initiative. This will allow for UEFI and other system firmware to be kept up to date with post launch features. The idea for Project Mu came from work related to the open-source UEFI implementation TianoCore which wasn't optimized to be deployed across multiple product lines. Project Mu contributes numerous UEFI features targeted at modern Windows based PCs. It also demonstrates a code structure and development process for efficiently building scalable and serviceable firmware. We look forward to engagements with the ecosystem as we continue to evolve and improve Project Mu to our mutual benefit!