Disagree. Typically, in this scenario, you're using some kind of protocol to communicate. In our case, it's protobufs: they are in fact one of the prime sources

Disagree. Typically, in this scenario, you're using some kind of protocol to communicate. In our case, it's protobufs: they are in fact one of the prime sources of breakages between repos, and one of the main reasons I wish we had a monorepo. Same would be true of json schemas, etc.