these 2 derivations will be built: /nix/store/v0f8k8x1fqvvghbdqxy1c1lavsa5dryz-flake-inputs.drv /nix/store/rp5cs8jn3jyz66hxn3fh6rq4d6hpspnf-check-flake-inputs.drv building '/nix/store/v0f8k8x1fqvvghbdqxy1c1lavsa5dryz-flake-inputs.drv' building '/nix/store/rp5cs8jn3jyz66hxn3fh6rq4d6hpspnf-check-flake-inputs.drv' upload niks3: ok