these 2 derivations will be built:
  /nix/store/1dzabxbnc314m7f5xh75z39w7mq44q6l-flake-inputs.drv
  /nix/store/xndrpm0xp66m1379kp7h8ja94ifqc2ji-check-flake-inputs.drv
building '/nix/store/1dzabxbnc314m7f5xh75z39w7mq44q6l-flake-inputs.drv'
building '/nix/store/xndrpm0xp66m1379kp7h8ja94ifqc2ji-check-flake-inputs.drv'

upload niks3: ok