VLM Tray System

Dual-screen tray display system for Vertical Lift Modules. Real-time inventory tracking, G.O. management, and full audit trail — running completely offline.

Dual Display 100% Offline No Database No Frameworks 27 Trays

How It Works

Two TVs connected to a single Devuan server via dual HDMI. The G.O. Display (left) shows General Order assignments for trays 1-4. The Parts Display (right) shows inventory for trays 5-27 with live search.

Try It

Click Load Sample Data to populate trays
Click Open Admin Panel to log in (admin / admin)
Add, edit, or delete parts — watch both displays update
Use the search bar on the Parts Display
Click Clear Tray on the G.O. Display

Tech Stack

Pure HTML, CSS, vanilla JavaScript
localStorage for data (no database)
Python http.server (built-in, no deps)
Chromium kiosk mode on Devuan Linux
Zero internet required

Features

27 configurable trays (G.O. + Parts)
Multi-user auth with admin/user roles
5-min inactivity auto-logout
Full audit trail (500 entries, CSV export)
Qty tracking with toggle visibility
Expandable tray cards with search