structuredAttrs is enabled

trying https://github.com/nix-community/nix-index-database/releases/download/2026-08-30-083329/index-aarch64-darwin
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0

  0      0   0      0   0      0      0      0                              0
 31 64.06M  31 20.01M   0      0 15.99M      0   00:04   00:01   00:03 19.36M
 93 64.06M  93 60.01M   0      0 26.35M      0   00:02   00:02         29.13M
100 64.06M 100 64.06M   0      0 27.69M      0   00:02   00:02         29.13M
100 64.06M 100 64.06M   0      0 27.69M      0   00:02   00:02         29.13M
100 64.06M 100 64.06M   0      0 27.69M      0   00:02   00:02         29.13M