End-to-end operational platforms for equipment rental businesses: an asset registry with rate cards and condition tracking, customer management, a quote-to-agreement-to-dispatch pipeline with checkout/check-in condition logging and automatic damage charges, invoicing pro-rated by day, and a full double-entry finance suite — chart of accounts, general ledger, and two-level maker-checker payment vouchers — alongside preventive maintenance scheduling, work orders, and spare-parts inventory.