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