Any plans to expand the BTRFS options in calamares config?

Hey, the calamares installer has done quite a lot to get more users on NixOS. Kudos for that. However, the BTRFS option for the drives does not create the proper subvolumes. Are there any plans to improve the BTRFS option in the calamares install script?

Manually creating the volumes and subvolumes by hand doesn’t work as calamares doesn’t recognize the partitions.

What’s “proper”? Subvolumes seem like an opinionated thing.