Dependency resolution is something programmers usually take for granted. Be it cargo, npm, or whatever package manager you use, no one is actually surprised when this black-box figures out, all by itself, the specific set of packages that should be installed. To me, though, it is a fascinating feat. It feels magical when a machine solves an abstract problem like that, with minimal input from me as a user! I was, therefore, delighted when the nice folks at Prefix.