this derivation will be built:
  /nix/store/zgkzv5rhqsff8ysg0fy280pb33gvxnjh-nix-shell.drv
this path will be fetched (0.0 KiB download, 13.7 MiB unpacked):
  /nix/store/v16nmx574ji6qgi2a92z54a8kgx5xpbi-openspec-1.14.3
building '/nix/store/zgkzv5rhqsff8ysg0fy280pb33gvxnjh-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok