self: super: with self; rec { name = "fast_float"; version = "6.1.6"; src = fetchFromGitHub { owner = "fastfloat"; repo = "fast_float"; rev = "v${version}"; hash = "sha256-MEJMPQZZZhOFiKlPAKIi0zVzaJBvjAlbSyg3wLOQ1fg="; }; }