Explore a conference talk from SREcon22 Americas detailing LinkedIn's journey to develop an automated operating system and environment certification process. Learn how the company addressed challenges in Linux kernel troubleshooting and Azure migration by implementing a comprehensive certification system. Discover the project's evolution from initial kernel certification to encompassing custom tooling and diverse environments. Gain insights into early directions, mistakes made, lessons learned, and preliminary results of this ongoing initiative. Understand the importance of partnerships and the three-stage certification approach in reducing toil and increasing velocity at LinkedIn.