What is snapshots in lockfile version 9?

[remorses]

I am debugging why i have 2 different versions of next installed (because of some peer dependency getting duplicated), i only have 1 version if next in the packages list and another one in the snaphosts list. What is snapshots? how is it different than packages?

[cdaringe]

#7685 talks about it.

it seems like TLDR snapshots represents all of the logical packages present in the stack