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// case study
Automation• 2025

JWS - Cinematic Masjid Digital Signage System

Modern digital signage and Islamic prayer schedule system for mosques, engineered as a standalone Windows kiosk executable featuring Android remote control, audited security, and Hardware ID (HWID) license DRM.

https://jws-masjid.dendi.dev
JWS - Cinematic Masjid Digital Signage System overview
STEP 01

Problem

Mosques require a 24/7 stable prayer schedule display, but off-the-shelf devices frequently crash, break offline, suffer network vulnerabilities, and are difficult to update without physical maintenance.

STEP 02

Solution

Engineered an offline-first system storing up to 5 years of local prayer schedules, bundled into an auto-boot Windows executable (.exe). Includes Android remote control with local auto-discovery, precise prayer state machine (IDLE → PRE_AZAN → AZAN → IQAMAH → PRAYER), YouTube overrides, treasury accounting, SEO product landing page, and audited security: JWT-encrypted HWID DRM, executable sandboxing, and local handshake verification.

STEP 03

Result

A commercial 24/7 digital signage product operating with zero maintenance, protected against piracy and unauthorized access, backed by an SEO-friendly web presence for global marketing.

5 Years
Offline Schedule
24/7
Zero Downtime
HWID DRM
License Protection
// tech stack
Node.jsExpress.jsVanilla JSApache Capacitor (Android)JWT & HWID DRMAudited Local SecuritySEO Metadatapkg (Windows Executable)Web Audio API

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