structuredAttrs is enabled

trying https://github.com/can1357/oh-my-pi/archive/refs/tags/v17.1.0.tar.gz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
  0      0   0      0   0      0      0      0                              0
100 39.60M   0 39.60M   0      0  9.65M      0           00:04         10.30M
unpacking source archive /nix/var/nix/builds/nix-44945-3478973059/download.tar.gz