Massive bindings that requires more than 9000 args

Hey there, it's about the 9000 args limit!
https://github.com/containers/bubblewrap/blob/d6180f25b164c708b8b0a0d86d6a9642f30cd9a9/bubblewrap.c#L1768C1-L1779

**Short issue:**
*How to bind a *massive* amount of files, without copying them to a tempfs (I don't want duplicated data)?*

The code says I should link them, but in order to symlink them, I would have to bind the src file (which makes me go into the same problem). I could also hardlink it but I use different devices for the files I wanna bind so I get `Invalid cross-device link`

**Context (not essential):**
I'm doing a program that sandboxes a Minecraft client with Nix (no need to know Nix at all, this is just to give context). Nix stores all the resources, files, etc... in the Nix store (`/nix/store`), and so I have this massive amount of assets files in `/nix/store`. **Every asset is in `/nix/store`, but not everything in `/nix/store` is an asset**.
And so I have the list of assets paths to give to bubblewrap (assets are still located in `/nix/store`), and it's too big.