Open QuarterMaster | Inventory without a catch with all the hooks | WarmIndex

Open QuarterMaster is an open-source, self-hosted inventory management system that provides scalable and modular tools for tracking items, locations, and data for individuals, hobbyists, and businesses of all sizes.

🚀 Overview

Open QuarterMaster is a powerful, flexible inventory management system designed to handle everything from personal spice racks to large-scale warehouses. It eliminates the limitations of proprietary systems by offering a modular, containerized architecture that scales effortlessly and supports custom extensions via plugins.

The project solves the problem of rigid, expensive inventory tools that lock users into vendors and lack adaptability. It's built for anyone managing physical goods—hobbyists on Raspberry Pi, small retailers, and enterprises—providing a privacy-focused, community-driven alternative with no licensing fees.

Created to be the 'last inventory system you'll ever need,' it emphasizes simplicity, extensibility, and openness, allowing users to automate workflows and integrate with custom hardware or software.

Answer these questions:

What problem does this project solve? Inflexible and costly inventory management.
Who is it built for? Individuals, businesses, developers at any scale.
Why did you build it? To offer a free, open, 'no catch' solution that's truly customizable and scalable.

✨ Key Features

Core API (what it does and why it matters): Central backend for tracking inventory items, locations, and metadata—foundation for all operations.
Base Station: Intuitive web frontend for easy daily use and management.
Plugins: Extensible modules for specialized tasks like POS, smart fridge integrations, or workflows—enables customization without rebuilding.
Modular containerized design: Deploy anywhere from Raspberry Pi to cloud, with privacy by default—no external data sharing.
Optional: Upcoming plugins and community contributions via discussions.

🛠 Tech Stack

Frontend: JavaScript, HTML, CSS
Backend: Java (Core API), Python
Database: Configurable (self-hosted setups)
Auth: Supports Keycloak or custom
Hosting: Self-hosted via Docker containers, deb packages; supports single-host, multi-node, Raspberry Pi