No... that is not system engineering. System engineering would be thinking about how the program to enable configuration templating with shell variables will wo

No... that is not system engineering. System engineering would be thinking about how the program to enable configuration templating with shell variables will work, how you can consistently add and remove templated, variable expandable configuration excerpts to be able to have configuration overlays, how you could design a configuration self-assembly service other OS configuration packages could call, writing that down, then implementing and packaging that in an OS package, so your other OS packages could depend, call and use it in a consistent fashion. Or thinking about how your standard database settings should be configured, writing a formal specification, then writing a tool to implement that, packaging it into an OS package, and then having your OS database configuration packages formally depend on it and call it to consistently create databases. These are just few examples of thinking about architecture, as opposed to writing how to documents.