anchor.diff:      buildInputs = [ dbus ];
     };
   
  +  nettle-sys = attrs: {
  +    nativeBuildInputs = [ pkg-config ];
  +    buildInputs = [ nettle clang ];
  +    LIBCLANG_PATH = "${llvmPackages.libclang}/lib";
  +  };
  +
     openssl = attrs: {
       buildInputs = [ openssl ];
     };
  
positive.code: { stdenv, pkg-config, curl, darwin, libiconv, libgit2, libssh2,
    openssl, sqlite, zlib, dbus, dbus-glib, gdk-pixbuf, cairo, python3,
    libsodium, postgresql, gmp, foundationdb, ... }:
  
  let
    inherit (darwin.apple_sdk.frameworks) CoreFoundation Security;
  
negative.code:     propagatedBuildInputs = [ Security ];
    };
  
    sequoia-openpgp = attrs: {
      buildInputs = [ gmp ];
    };
  
    sequoia-openpgp-ffi = attrs: {
      buildInputs = [ gmp ];
    };
  
    sequoia-ipc = attrs: {
      buildInputs = [ gmp ];
    };
  
    sequoia-guide = attrs: {
      buildInputs = [ gmp ];
    };
  
    sequoia-store = attrs: {
      nativeBuildInputs = [ capnproto ];
      buildInputs = [ sqlite gmp ];
    };
  
    sequoia-sq = attrs: {
      buildInputs = [ sqlite gmp ];
    };
  
    sequoia-tool = attrs: {
      nativeBuildInputs = [ capnproto ];
      buildInputs = [ sqlite gmp ];
    };
  
    serde_derive = attrs: {
      buildInputs = stdenv.lib.optional stdenv.isDarwin Security;
    };
  