I'm talking about the scalability of actually delivering new code to servers (or "serverless" runtimes). Feature flags don't help with that. Admittedly, it isn

I'm talking about the scalability of actually delivering new code to servers (or "serverless" runtimes). Feature flags don't help with that. Admittedly, it isn't a scalability problem you will run into right away. But when you need to roll out an emergency fix, there is a big difference between deploying to thousands of servers that all have everything, and ten servers running a single service.