A livestock ledger, rebuilt without downtime.
DealerMaster moves cattle dealerships off decades-old COBOL onto a modern Python stack — general ledger, contracts, and settlements intact, the business never stops.
Challenge, approach, outcome.
Challenge
A working business runs on 30-year-old COBOL. Rewrites usually mean risk, downtime, and lost history — none of which a live dealership can absorb.
Approach
We rebuild incrementally on modern Python: a balance-enforced double-entry ledger, livestock inventory by pen and lot, contracts and settlements — migrated without stopping the machine.
Outcome
A modern, maintainable platform that models the money exactly — purchases, sales, AP/AR, and financed contracts — ready to move onto managed cloud.
Under the hood.
Balance-enforced GL
Double-entry postings that never leave the books unbalanced.
Inventory by pen/lot
Livestock tracked through purchase, holding, and sale.
Contracts & settlements
Deals, weights, and settlement handled in-system.
Contract financing
Financed sales tracked as a serviceable receivable.
Have a legacy system you can't afford to break?
A 30-minute conversation with an architect — not a salesperson. We'll tell you honestly whether we're the right fit.
Talk to an Architect