these 2 derivations will be built: /nix/store/9hnpcsr9wbvnz0iwjdr7mp0zda5ak4n0-flake-inputs.drv /nix/store/bxvf7q0vkpikph8nmb16d6qcqfjia9sc-check-flake-inputs.drv building '/nix/store/9hnpcsr9wbvnz0iwjdr7mp0zda5ak4n0-flake-inputs.drv' building '/nix/store/bxvf7q0vkpikph8nmb16d6qcqfjia9sc-check-flake-inputs.drv' upload niks3: ok