Enter target and command pairs, one per line, and the tool formats them into a correctly tab-indented Makefile with an automatic .PHONY line.
Yes, and the tool handles it — Make requires literal tab characters (not spaces) before each command line, which the generated file uses correctly.
Yes, as a starting point — adjust the values to match your actual project structure and tooling versions.
It follows the tool's documented format, but always run your build once after adding it to confirm your specific setup is happy.