these 2 derivations will be built: /nix/store/8zxkb3vhyx3s1jjb2nv1qck4bcbb0s5b-flake-inputs.drv /nix/store/kjvkl278xb1yjjkvrplchwyiygqipvln-check-flake-inputs.drv building '/nix/store/8zxkb3vhyx3s1jjb2nv1qck4bcbb0s5b-flake-inputs.drv' building '/nix/store/kjvkl278xb1yjjkvrplchwyiygqipvln-check-flake-inputs.drv' upload niks3: ok