def _vv():
    """Finds the nearest venv going upward in the directory hierarchy and activates it."""
    d = Path.cwd()

    while True:
        if (d / "venv").exists():
            vox activate @(str(d / "venv"))
            return True

        if d == d.parent or (d / ".git").exists():
            print("Could not find venv.")
            return False

        d = d.parent


aliases["vv"] = _vv