this derivation will be built:
  /nix/store/0mzdg803hgxqimw69s7rpi9zj64b9la7-nix-shell.drv
this path will be fetched (0.0 KiB download, 13.9 MiB unpacked):
  /nix/store/gf408lal5xf1csp3cqz3jv23vh4ylq1g-openspec-1.14.1
building '/nix/store/0mzdg803hgxqimw69s7rpi9zj64b9la7-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok