-let nixpkgs_unstable = import (builtins.fetchTarball {
- # FIXME: upgrade to nixpkgs 19 when stable and stick to stable
- # versions
- name = "nixos-unstable-2018-12-08";
- url = https://github.com/nixos/nixpkgs/archive/61c3169a0e17d789c566d5b241bfe309ce4a6275.tar.gz;
- sha256 = "0qbycg7wkb71v20rchlkafrjfpbk2fnlvvbh3ai9pyfisci5wxvq";
-}) {};
-in
- with nixpkgs_unstable;
-{
- inherit nixpkgs_unstable;