these 2 derivations will be built: /nix/store/m9c5lgxcz7mkxp1pvbqhbxrfsc4vxdvx-flake-inputs.drv /nix/store/89mq9aqmanb6657dc72khbap8r26pc1h-check-flake-inputs.drv building '/nix/store/m9c5lgxcz7mkxp1pvbqhbxrfsc4vxdvx-flake-inputs.drv' building '/nix/store/89mq9aqmanb6657dc72khbap8r26pc1h-check-flake-inputs.drv' upload niks3: ok