these 2 derivations will be built: /nix/store/hjfdy9vjmh17zjrx5laddf7yvcx21dpp-flake-inputs.drv /nix/store/c1x6cr4ps2i28wvj39g3vvrhm24idi83-check-flake-inputs.drv building '/nix/store/hjfdy9vjmh17zjrx5laddf7yvcx21dpp-flake-inputs.drv' building '/nix/store/c1x6cr4ps2i28wvj39g3vvrhm24idi83-check-flake-inputs.drv' upload niks3: ok