# Help rules_nixpkgs synchronize with the flake's locked version of Nixpkgs. let lock = builtins.fromJSON (builtins.readFile ./flake.lock); spec = lock.nodes.nixpkgs.locked; nixpkgs = fetchTarball "https://github.com/${spec.owner}/${spec.repo}/archive/${spec.rev}.tar.gz"; in import nixpkgs