these 2 derivations will be built:
  /nix/store/537z3js86ip9ikfdcxffz7c5m9j8xsip-flake-inputs.drv
  /nix/store/55jny9cakj948cl1lsvlrv2q9l426xjn-check-flake-inputs.drv
building '/nix/store/537z3js86ip9ikfdcxffz7c5m9j8xsip-flake-inputs.drv'
building '/nix/store/55jny9cakj948cl1lsvlrv2q9l426xjn-check-flake-inputs.drv'

upload niks3: ok