Sure there is, the NUR has a few thousand community packages that are not ready for release
The nixpkgs are all official packages, it's just really easy to become a maintainer (you make a pull request adding the package you want to maintain)
The nixpkgs are all official packages, it's just really easy to become a maintainer (you make a pull request adding the package you want to maintain)
Reaching for reproducible builds support in Arch is a more attainable goal than for nixpkgs. Properly maintaing 80k packages without regressions is going to be a lot more work in the long term.