structuredAttrs is enabled

trying https://github.com/Dicklesworthstone/beads_viewer/archive/refs/tags/v0.19.0.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 56.20M   0 56.20M   0      0  6.77M      0           00:08          6.90M
unpacking source archive /nix/var/nix/builds/nix-68078-2602176665/download.tar.gz