With pack.arc you can pack a library in a directory, and then you can distribute that directory and put it wherever you like. I don't like too much the method of abusing the forum to distribute libraries. I would really like an ad-hoc application (maybe at arclanguage.org/libs), so that if require doesn't find a lib it tries to install it from arclanguage.org/libs?name=my-lib or something similar. As of today, dependencies are already handled, but the needed package must be in the search path of pack.arc.