Recently somebody showed me their sophisticated Docker file that was supposed to build a Maven project "in a reproducible way". When you ran it it spent 5 minut

Recently somebody showed me their sophisticated Docker file that was supposed to build a Maven project "in a reproducible way". When you ran it it spent 5 minutes downloading a bazillion files from the internet…no prior information on the content of those files was on the system. If the content of version X of a dependency changed in the meantime, you'd never know.