TGC Business Utility System — BUS Core
A local-first inventory and manufacturing system for small shops and solo makers.
No cloud. No accounts. No subscriptions.
Your data stays on your machine.
What Is BUS Core?
BUS Core is designed for workshops that build real things in small batches.
It replaces:
Spreadsheets
Paper logs
Ad-hoc tracking systems
Expensive SaaS platforms
With:
One local database
Real production costing
Full audit history
Complete data ownership
It is built for operators who want control, not dashboards.
Who BUS Core Is For
Small manufacturing shops (1–20 people)
Makerspaces
Custom fabricators
Repair and prototyping shops
Solo operators
If you build physical products in low to medium volume, BUS Core is for you.
What It Tracks
Materials & Consumables
Track stock by unit (grams, millimeters, milliliters, each), with batch numbers, cost, and purchase dates.
Blueprints (Recipes)
Define how materials become products. Costs are calculated using FIFO from real purchase batches.
Assemblies & Products
Build items from blueprints, set prices, and compare real costs to sales.
Vendors
Track supplier pricing and purchasing history over time.
BUS Core focuses on operations and production costing.
It is not a full accounting system—and is not trying to be.
Key Features
Open Source — 100% free (AGPLv3)
Precision Inventory — FIFO batch valuation with metric units
Manufacturing Engine — Recipe-based builds with atomic commits
Ledger & Audit Trail — Complete movement history
Local & Private — SQLite database with encrypted backups
Cross-Platform — Windows, Linux, and macOS
Built with