Just set up your disk layout the way you want on a disk device or a loopback disk backed by an image, and do something like:

$ sudo dnf --installroot=/path/to/mounted/target group install @core @hardware-support

And you're good to go. You can see the list of groups available to include by using "dnf group list --ids".

If you opened the first link I shared you would see more is needed than this, which is why I linked to something explaining both this and the additional steps needed.