structuredAttrs is enabled

trying https://github.com/can1357/oh-my-pi/archive/refs/tags/v17.2.11.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 41.69M   0 41.69M   0      0 10.17M      0           00:04         11.05M
unpacking source archive /nix/var/nix/builds/nix-7036-1552756301/download.tar.gz