Knit, like Make, is designed to provide incremental builds. In other words, a build that takes into account the graph of dependencies involved. Their goal is to only run build steps that need to be run. If a build target has already been built, and its dependencies have not changed, then the build rules associated with the target can be skipped.

Just, as far as I know, does not support incremental builds. Just is more intended to provide a set of project-specific scripts that are convenient to list and run. Make is sometimes used in that way with "phony" targets, but that is more of an evolved usage. Make's original purpose was to allow for defining builds in terms of dependency graphs.

compare to just what?

what?

just what?

just

what?