I have task to minimize the root file system, by removing busy box and adding additional packages in place of busybox like core-utils, binutils, tiny-login etc.
"BusyBox combines tiny versions of many common UNIX utilities into a single small executable. It provides replacements for most of the utilities you usually find in GNU fileutils, shellutils, etc."
"BusyBox has been written with size-optimization and limited resources in mind."