these 2 derivations will be built: /nix/store/k4w1ga683d4g8v9g15r3269kk8g09sbk-flake-inputs.drv /nix/store/ix5mg5dpxw0v8l210imp8v9i1s5wb6d4-check-flake-inputs.drv building '/nix/store/k4w1ga683d4g8v9g15r3269kk8g09sbk-flake-inputs.drv' building '/nix/store/ix5mg5dpxw0v8l210imp8v9i1s5wb6d4-check-flake-inputs.drv' upload niks3: ok