these 2 derivations will be built: /nix/store/r2x4awacyapsp5jlacbj164dy7p1yzhc-flake-inputs.drv /nix/store/ppbb4mi9chxv83n3y5m5zqi35jnqcfsv-check-flake-inputs.drv building '/nix/store/r2x4awacyapsp5jlacbj164dy7p1yzhc-flake-inputs.drv' building '/nix/store/ppbb4mi9chxv83n3y5m5zqi35jnqcfsv-check-flake-inputs.drv' upload niks3: ok