these 2 derivations will be built:
  /nix/store/k566r8qck9ja2hsiar328j8n9h9di6nf-flake-inputs.drv
  /nix/store/b1szz3d9ylh0q16bnqbrsma071lcl4gg-check-flake-inputs.drv
building '/nix/store/k566r8qck9ja2hsiar328j8n9h9di6nf-flake-inputs.drv'
building '/nix/store/b1szz3d9ylh0q16bnqbrsma071lcl4gg-check-flake-inputs.drv'

upload niks3: ok