self: super: {
  neomutt = super.neomutt.overrideAttrs (old:
    rec {
      version = "20191111";
      src = self.fetchFromGitHub {
        owner = "neomutt";
        repo = "neomutt";
        rev = version;
        sha256 = "16xr7wdmjw0i72xbnyyh098wx4cr0m8w2cr1szdi1b14p4kpgr67";
      };
      buildInputs = old.buildInputs ++ [ self.gdbm ];
      configureFlags = old.configureFlags ++ [ "--gdbm" ];
    }
  );
}