This works in some cases, perhaps even most cases, but it does not scale. I reasonable sized monolith, a limited executable. Looking at things that dont fit

This works in some cases, perhaps even most cases, but it does not scale. I reasonable sized monolith, a limited executable. Looking at things that dont fit - Linux: the code base i vast, even for one sub system. Some sub systems are complex If you dont know enough about architecture and operating systems, computer chips etc etc it will be difficult. - Distributed system: Here we have some parts in AWS Lambda, Some parts in different microservices, written in different languages. Some parts are extensions to the database to add native features. I always prefer to start with am architecture document. A high level of all the parts, how they fit together what they do and so on. Distributed systems are a pain in the ass to debug and get into.