this derivation will be built:
  /nix/store/dy1jp9qiwlh1hvqf7a8a2xv5vbgx9h8x-nix-shell.drv
this path will be fetched (0.0 KiB download, 13.8 MiB unpacked):
  /nix/store/96y9lqlxgyk1ba7xq0wma8424snkbmr9-openspec-1.16.0
building '/nix/store/dy1jp9qiwlh1hvqf7a8a2xv5vbgx9h8x-nix-shell.drv' on 'grpc://[fddb:4344:343b:14b9:399:9324:19d9:3451]:50051?ca-cert=/run/nix-grpc-store/ca.crt&connect-timeout=5'
building '/nix/store/dy1jp9qiwlh1hvqf7a8a2xv5vbgx9h8x-nix-shell.drv' on [fddb:4344:343b:14b9:399:9324:19d9:3451]:50051
nix-shell> stibnite: building dy1jp9qiwlh1hvqf7a8a2xv5vbgx9h8x-nix-shell.drv
nix-shell> Running phase: buildPhase

upload niks3: ok