That’s a good breakdown. In practice configuration systems that reach level 4 or 5 start to look complex and the whole thing ends up with a new rewrite into a

That’s a good breakdown. In practice configuration systems that reach level 4 or 5 start to look complex and the whole thing ends up with a new rewrite into a level 2 or 3. After a while it expands, because it needs comments, include files, templating, for loops, etc., until it becomes a total mess and gets thrown out and we cycle back to level 3.