If someone twist my arm and off and convinces me to do some consulting, I’ve seen thousands of services started by individual developers, where there is no accounting, so the ops people don’t know what needs to be kept up or what can be shut down.

Definitely separate regulatory differences (marketing vs credit card processing for example). Generally, separate out high velocity code changes from slow velocity code if possible.

I wouldn’t get in the habit of database migrations having anything to do with code pushes. Unless you have no users, I guess. Yikes. So much to say on that topic alone.

What I am saying is that companies who break apart monoliths as a code organization tool are making a very bad decision. They’re getting all the downsides and none of the upsides of microservices.