title: monorepo VS. github submodules
body: <p>Our app is built in microservice architecture, one service one repo. We are exploring whether we should create a monorepo, as many companies are following this practice. There are plenty of discussions about the pros and cons for mono vs. many. If we want to find an alternative to allow us have some cons from both options, should we use git submodules to provide 'looks-alike' mono structure? </p>