these 2 derivations will be built:
  /nix/store/gxy15ppc20f87rcjzmj0bdijb7gc20nr-flake-inputs.drv
  /nix/store/4nr0zcmc2xgypqfjy2ildmg4xpnazdbw-check-flake-inputs.drv
building '/nix/store/gxy15ppc20f87rcjzmj0bdijb7gc20nr-flake-inputs.drv'
building '/nix/store/4nr0zcmc2xgypqfjy2ildmg4xpnazdbw-check-flake-inputs.drv'

upload niks3: ok