these 2 derivations will be built:
  /nix/store/15kdhc2c6zq7gd7p81kpfj0iy5dmx83l-flake-inputs.drv
  /nix/store/fplxj2hp248kw8qz3ndyz616wq1cahb2-check-flake-inputs.drv
building '/nix/store/15kdhc2c6zq7gd7p81kpfj0iy5dmx83l-flake-inputs.drv'
building '/nix/store/fplxj2hp248kw8qz3ndyz616wq1cahb2-check-flake-inputs.drv'

upload niks3: ok