these 2 derivations will be built: /nix/store/457xi832dc1y8jhb569wnj9ph5r6wr7s-flake-inputs.drv /nix/store/3vfm5a3292ncg06ih9817vyk78wgcs7a-check-flake-inputs.drv building '/nix/store/457xi832dc1y8jhb569wnj9ph5r6wr7s-flake-inputs.drv' building '/nix/store/3vfm5a3292ncg06ih9817vyk78wgcs7a-check-flake-inputs.drv' upload niks3: ok