People don't do this because `node_modules` can be absolutely massive (hundreds of megabytes or more), and a lot of people don't like (for various reasons) such

People don't do this because `node_modules` can be absolutely massive (hundreds of megabytes or more), and a lot of people don't like (for various reasons) such large repositories. There is a deprecated project at my work that committed the entire yarn offline cache to the repo. At least those were gzipped, but the repo still had a copy of every version of every dependency. It isn't a good long term solution unless you really don't care at all about disk space or bandwidth (which you may or may not).