Offline POS/KDS Debugging & Windows Installer Creation

Debug & Create Windows Installer for Offline POS + KDS (Node.js + SQLite)

Description

I have an offline POS (cash register) + KDS (kitchen display) web app running locally on Windows using Node.js (Express/ESM), WebSockets, and SQLite (better-sqlite3). It includes Admin/Panel, table orders, and Excel (.xlsx) product import.

What I need

Debug & stabilize

Products sometimes don’t show after import

Selecting a table can fail (cannot open/create order)

Send-to-kitchen is unreliable and/or KDS shows offline

Add clear logging and fix root causes (import, orders, realtime updates)

Build a one-click Windows installer

Clean install on Windows 10/11 (no Node knowledge required)

Install/bundle Node + dependencies, set up data/DB, create Start/Stop shortcuts

Provide a simple setup guide + troubleshooting notes

Deliverables

Fixed project (repo/zip) + changelog

Windows installer (.exe) + quick installation/start guide

Basic acceptance test checklist (fresh install → import works → orders/KDS work)

Required skills

Node.js debugging, SQLite, WebSockets, Windows packaging/installer (NSIS/Inno Setup/PowerShell).