BUS Core

BUS Core is a desktop application designed for small production operations that have outgrown spreadsheets but don't need a full ERP system. It manages inventory, materials, production runs, jobs, invoices, and actual costing in a single local database. The maker says it was built using LLMs as an experiment with a source-of-truth and smoke test approach.

The software runs entirely locally on Windows with no cloud dependency, accounts, or required telemetry. Users can self-host the open-source version or opt for a managed service. It tracks raw materials through production to finished goods, ties job records to real shop work, and calculates product costs and gross profit—all stored in portable SQLite format.