these 2 derivations will be built:
  /nix/store/isjrgvba9d3ygxv9hjqpyr7cbqd1nxlw-flake-inputs.drv
  /nix/store/5vgmi9bzhb929kdcg1pb3pb1iz6ra2dy-check-flake-inputs.drv
building '/nix/store/isjrgvba9d3ygxv9hjqpyr7cbqd1nxlw-flake-inputs.drv'
building '/nix/store/5vgmi9bzhb929kdcg1pb3pb1iz6ra2dy-check-flake-inputs.drv'

upload niks3: ok