{ fetchurl, buildNpmPackage, tap }: buildNpmPackage rec { pname = "semver"; version = "5.7.1"; src = fetchurl { url = "https://github.com/npm/node-semver/archive/v${version}.tar.gz"; sha256 = "19x7ngr273pbbiar0vzpqqjl9lsrdpmddwaw1sca2w9a36q744f5"; }; npmInputs = [ tap ]; }