these 2 derivations will be built: /nix/store/vdfwz56yg7imzrh6ya19qqcdxbk0j4z5-flake-inputs.drv /nix/store/5yqyfcyn4ys4jnyhbpnxdi45pdl0g0rn-check-flake-inputs.drv building '/nix/store/vdfwz56yg7imzrh6ya19qqcdxbk0j4z5-flake-inputs.drv' building '/nix/store/5yqyfcyn4ys4jnyhbpnxdi45pdl0g0rn-check-flake-inputs.drv' upload niks3: ok