env('FINANCE_LEDGER_MODE', 'legacy'), 'carryforward' => [ 'enabled' => env('FINANCE_CARRYFORWARD_ENABLED', true), 'auto_post_to_new_year' => env('FINANCE_CARRYFORWARD_AUTO_POST', false), 'block_enrollment_threshold' => env('FINANCE_CARRYFORWARD_BLOCK_ENROLLMENT_THRESHOLD', null), 'require_admin_review_threshold' => env('FINANCE_CARRYFORWARD_REVIEW_THRESHOLD', 0), 'allow_installment_plan' => env('FINANCE_CARRYFORWARD_ALLOW_INSTALLMENT_PLAN', true), ], 'payment_allocation' => [ 'default_policy' => env('FINANCE_PAYMENT_ALLOCATION_POLICY', 'oldest_debt_first'), ], 'tuition_calculator_version' => env('FINANCE_TUITION_CALCULATOR_VERSION', 'old'), ];