How to remove node_modules Create a .gitignore file Check for an existing .gitignore file in the project directory ls -a
System Design Cheatsheet Picking the right architecture = Picking the right battles + Managing trade-offs Basic Steps Clarify and agree on the scope of the system User cases (description of sequences of events that, taken together, lead to a system doing something useful) Who is going to use it? How are they going to use it?