Nx, a tool designed to optimize computation time, offers several strategies to enhance efficiency both locally and in continuous integration (CI) environments. It achieves this through features like affected commands, which only run tests on modified projects and their dependencies, and local computation caching, which stores results of repeated operations to avoid redundant processing. Additionally, Nx Cloud extends these capabilities by distributing the computation cache across multiple machines, significantly saving time and potentially reducing CO2 emissions, depending on the infrastructure used. Since its inception, Nx Cloud has reportedly saved hundreds of years' worth of computation time, illustrating its effectiveness. Nx's integration with Lerna, following its acquisition by Nrwl, allows Lerna users to leverage Nx's advanced scheduling and caching without changing their existing workflows.