2016-10-13 10:21 GMT+03:00 zimbatm <zimbatm at zimbatm.com>: > My understanding of fetchurl is that the hash can be both in hex and base64 > formats no? No :-) It probably should be extended to support base64. And/or base64 support should be in the library, or in nix builtins. But at this time I can't wait.