Tuomas Artman discusses the evolution and scaling challenges of Linear's realtime sync engine, which he initially presented at React Helsinki. In a recent company offsite video, Artman revisits how these challenges have shaped the API and the current functionality of the sync engine within the Linear application. He invites viewers to experience the engine firsthand by signing up for a free Linear account and highlights that the company is recruiting for roles across Europe and North America to further advance the engine and the platform.