physix/systems/__init__.py

from physix.systems.base import PhysicalSystem, SystemTier
from physix.systems.registry import (
    SUPPORTED_SYSTEMS,
    SYSTEM_REGISTRY,
    get_system,
    list_supported_systems,
    list_systems,
    list_systems_by_tier,
)

__all__ = [
    "PhysicalSystem",
    "SystemTier",
    "SYSTEM_REGISTRY",
    "SUPPORTED_SYSTEMS",
    "get_system",
    "list_systems",
    "list_systems_by_tier",
    "list_supported_systems",
]