i must admit that i'm not a big fan of nimble (nim's package manager; for a few reasons) but on the other site you have apt, pacman, yum, whatelsenot, afaik most of them are not even able to install two versions of the same library side by side. The situation is so bad that most applications these days are packed with `flatpack` or something else, because of the so broken linux package management...
In contrast to eg. npm nimble is superfast.