Comment by rzimmerman

I've worked a bit with "the big monorepo" (though nothing like Google scale) and my impression is that a lot of the benefits fall apart if you don't have people working to maintain the build environment, automated tests, developer environments. When it takes hours or more to run tests and produce a build it can really slow the team down. The ability to force updates on dependencies in a single big commit can be really worthwhile as long as you're willing to spend the time to build the tools and do the maintenance.