nix-tools/data/schemas/grubcfg.schema.yaml

---
type: map
mapping:
    "overwrite": { type: bool, default: false }
    "defaults":
        type: map
        mapping:
            "GRUB_TIMEOUT": { type: int, required: true }
            "GRUB_DEFAULT": { type: str, required: true }
            "GRUB_DISABLE_SUBMENU": { type: bool, default: true }
            "GRUB_TERMINAL_OUTPUT": { type: str, required: true }
            "GRUB_DISABLE_RECOVERY": { type: bool, default: true }