{ self, ... }: {
flake.lib.mkDerivationFor = pkgs: args:
pkgs.stdenv.mkDerivation ({
src = self;
FONTCONFIG_FILE =
pkgs.makeFontsConf { fontDirectories = [ pkgs.google-fonts ]; };
## Do not look this derivation up in substitutes, because it is
## never going to be there.
## REVIEW: Should change if we introduce Cachix.
allowSubstitutes = false;
} // args);
}