these 2 derivations will be built:
  /nix/store/75z6gl28dc3s5ards42ki5ryjckg97fn-flake-inputs.drv
  /nix/store/l4pgfrbnk1md522jc233f4qvw50qjzla-check-flake-inputs.drv
building '/nix/store/75z6gl28dc3s5ards42ki5ryjckg97fn-flake-inputs.drv'
building '/nix/store/l4pgfrbnk1md522jc233f4qvw50qjzla-check-flake-inputs.drv'

upload niks3: ok