this derivation will be built:
  /nix/store/d28q1x6rwpqgy1yy0f56c592zpkk35w0-nix-shell.drv
building '/nix/store/d28q1x6rwpqgy1yy0f56c592zpkk35w0-nix-shell.drv'
nix-shell> Running phase: buildPhase

upload niks3: ok