these 2 derivations will be built: /nix/store/hfcrjspk7dvr9v4wkxlyq61ja00gbri7-flake-inputs.drv /nix/store/55w3i5z4g0f7g5gm2w9aag16qvdca107-check-flake-inputs.drv building '/nix/store/hfcrjspk7dvr9v4wkxlyq61ja00gbri7-flake-inputs.drv' building '/nix/store/55w3i5z4g0f7g5gm2w9aag16qvdca107-check-flake-inputs.drv' upload niks3: ok