these 2 derivations will be built:
  /nix/store/1c5pr42mi51mnvrdqpkr0cp4avh9nz85-flake-inputs.drv
  /nix/store/bg6qbhzjsl9jspg7nzh0n34gzbzrxkyc-check-flake-inputs.drv
building '/nix/store/1c5pr42mi51mnvrdqpkr0cp4avh9nz85-flake-inputs.drv'
building '/nix/store/bg6qbhzjsl9jspg7nzh0n34gzbzrxkyc-check-flake-inputs.drv'

upload niks3: ok