This application is a local freight ledger management software. All data and calculations are performed locally, without relying on a network. It has the following functions:
1. Trucks: Add, edit, and delete trucks;
2. Drivers: Add, edit, and delete drivers;
3. Plans: Add, edit, and delete plans; manage costs for each plan execution; summarize freight revenue and profit by driver and vehicle;
4. Configs: Edit cargo type, weight unit, load unit, length unit, mileage unit, cost type, currency unit, and exchange rate;
5. My: Local backup/restore