This looks to me like just a simple oversight in iso-image.nix. There is a boot.loader.timeout option that should be used here but it’s not. I would just make a PR to interpolate that in as ${toString config.boot.loader.timeout}.
This looks to me like just a simple oversight in iso-image.nix. There is a boot.loader.timeout option that should be used here but it’s not. I would just make a PR to interpolate that in as ${toString config.boot.loader.timeout}.