these 2 derivations will be built:
  /nix/store/yyyfq9lvfrjmdmzni10ffa3w95cmmjaz-flake-inputs.drv
  /nix/store/kfkvm1zysx43k579hizh0jgj3s2wk2p5-check-flake-inputs.drv
building '/nix/store/yyyfq9lvfrjmdmzni10ffa3w95cmmjaz-flake-inputs.drv'
building '/nix/store/kfkvm1zysx43k579hizh0jgj3s2wk2p5-check-flake-inputs.drv'

upload niks3: ok