these 2 derivations will be built: /nix/store/yfk36sjq16vf2whbgr636kbxcvmdwzp3-flake-inputs.drv /nix/store/l1vgzhl1ys0l6dq1jp9zz0f7jw2r88yz-check-flake-inputs.drv building '/nix/store/yfk36sjq16vf2whbgr636kbxcvmdwzp3-flake-inputs.drv' building '/nix/store/l1vgzhl1ys0l6dq1jp9zz0f7jw2r88yz-check-flake-inputs.drv' upload niks3: ok