these 2 derivations will be built:
  /nix/store/5z6sjsywygiz1p9qwx309klc2n6wlzxf-flake-inputs.drv
  /nix/store/1cnpfvhq6h0j3m3c8w782gcvw3g7rcff-check-flake-inputs.drv
building '/nix/store/5z6sjsywygiz1p9qwx309klc2n6wlzxf-flake-inputs.drv'
building '/nix/store/1cnpfvhq6h0j3m3c8w782gcvw3g7rcff-check-flake-inputs.drv'

upload niks3: ok