Offline Quran Search: JSON Data & Logic Advice Needed

AFNANXOXO

Salam Alaykum Team,

First, thank you for the incredible Al Quran Cloud API.

I am developing an AR Smart Glasses App for Deaf Muslims (using Unity/C#). The app listens to the Imam and displays verses in real-time.

The Challenge: To ensure Zero Latency and reliability inside mosques (where internet is unstable), I need to migrate from using your live API to a Fully Offline Solution. I am looking for the best architectural approach to achieve this.

My Questions (covering both Data & Logic):

The Data (JSON Dump): Do you provide a comprehensive JSON dataset that includes BOTH the "Simple/Clean" script (for efficient search) and the "Uthmani" script (for display) mapped together? I need a single source of truth to store locally.
The Logic (Replicating the API): I want to replicate the behavior of your /search endpoint locally on the device.

Do you have any open-source logic or algorithms you recommend for matching input text to Ayahs efficiently offline?

Is there a "lightweight" version of the API (or a library) that can be embedded directly into a mobile/Unity app?

Handling Input Errors: Since I am using Speech-to-Text, do you recommend a specific approach (e.g., Fuzzy Matching / Levenshtein Distance) to handle minor diacritic or character mismatching against your dataset?

Any guidance, links to repos, or advice on how to architect this "Offline Search Engine" would be deeply appreciated.

Jazakum Allah Khair.

gokboru

AFNANXOXO 3laykum salaam.

How would you accomplish a fast search with a JSON dump, even with just 3 editions?
The current logic is available in the API codebase on 1x.ax - https://1x.ax/islamic-network/alquran/api/~files/master/api/Models/SearchResponse.php (you'll have to login before you can see the API's codebase) and searches an SQL database. If you want to localise this, you can simply take the data you need and build a tiny SQLite database and bundle that in with your app - that will keep everything offline.
This would require some testing - maybe even a 'LIKE' SQL match might be good enough, but really testing both those algorithms may make sense (I don't know how they would play with Arabic, though) to see if they add any credible value.

InshaAllah I hope this helps.