No, it produces a tree of libraries that you have to untar on the host machine. If you dont have root, then unpacking to /gnu/store is impossible

I checked and it looks like the root-required issue has been addressed with a --relocatable flag, and there are a few options as well for needing to untar, e.g. producing an appimage format output.

I think I tried with this flag, but either it was incompatible with a cross-compile target, or it did not support my target arch properly