Makefile syntax is also well understood by ChatGPT. If you want to know a suitable way for doing some task, ChatGPT can do it. It can also explain what another Makefile is doing.

Here's an example of a (similar) prompt I used recently: "Write me a makefile that executes a script inside a docker container. I want the script to be someprefix-<target-script> that calls /app/<target-script>.sh inside the container."

I don't have to care about Makefile syntax anymore for the most part.