I even found using submodules in git was really helpful as well even though it wasn't a module per say. For example in Mongo, I have models in node.js and it is

I even found using submodules in git was really helpful as well even though it wasn't a module per say. For example in Mongo, I have models in node.js and it is really simple to share the model in every node project across the org as mongo models contain schema and validation etc.