these 2 derivations will be built: /nix/store/vzh5pr5qr54h6lqdsd4fnzxga2sad172-flake-inputs.drv /nix/store/13r6vag0yavq44j5v48y0v1aq3ws2s5l-check-flake-inputs.drv building '/nix/store/vzh5pr5qr54h6lqdsd4fnzxga2sad172-flake-inputs.drv' building '/nix/store/13r6vag0yavq44j5v48y0v1aq3ws2s5l-check-flake-inputs.drv' upload niks3: ok