# Rehan Quant Lab (RQL)
> Sovereign Pure-Rust Desktop Computing. Air-Gapped Execution, Zero Cloud Telemetry, Lifetime Perpetual Ownership.

Rehan Quant Lab (founded by Mohammad Rehan, Systems Architect in Patna, Bihar, India) engineers high-performance, single-binary Windows desktop software for commercial enterprises, retail operators, legal chambers, chartered accountants, and quant institutions. Every application runs 100% offline with zero cloud dependencies, zero telemetry, and zero recurring SaaS subscriptions.

## Core Navigation & Official Endpoints
- [Official Portal](https://rehanquantlab.com/): Master executive portal and system overview.
- [Commercial Store](https://rehanquantlab.com/store.html): The complete catalog of 20 Commercial Desktop Workstations with direct Gumroad perpetual license acquisition.
- [Systems Portfolio](https://rehanquantlab.com/projects.html): Production software architecture, performance metrics, and quantitative research.
- [Security Architecture](https://rehanquantlab.com/security.html): Air-gapped compliance, SHA-256 binary provenance, HIPAA/GDPR/DPDP compliance documentation.
- [RQL Aegis Platform](https://rehanquantlab.com/aegis.html): Enterprise deterministic state kernel and cryptographic ledger framework.
- [Career & Technical Dossier](https://rehanquantlab.com/experience.html): Founder background, engineering milestones, and technical certifications.
- [Legal, Licensing & Terms](https://rehanquantlab.com/legal.html): Perpetual license guarantees, zero-telemetry warranty, and privacy codex.
- [Enterprise Inquiries](https://rehanquantlab.com/contact.html): Direct executive briefing and custom institutional deployment requests.

## 20 Commercial Workstations Catalog

1. **RQL DocumentShield?** (`RQL_DocumentShield_Master_Setup.exe`): Enterprise forensic PDF redaction, true permanent vector sanitization, automated SSN/Tax EIN pattern purger, and court-admissible SHA-256 compliance certification.
   - Link: https://quantify17.gumroad.com/l/rql-documentshield

2. **RQL WhisperVault?** (`RQL_WhisperVault_Master_Setup.exe`): Air-gapped local AI speech-to-text intelligence powered by offline Whisper models with millisecond word-level SRT/VTT generation and executive PDF meeting summaries.
   - Link: https://quantify17.gumroad.com/l/rql-whispervault

3. **RQL RetailPOS?** (`RQL_RetailPOS_Master_Setup.exe`): Sub-millisecond barcode checkout, split-payment tender, ESC/POS 80mm thermal receipt generation, and double-entry SQLite WAL ledger for supermarkets.
   - Link: https://quantify17.gumroad.com/l/rql-retailpos

4. **RQL StoreChain?** (`RQL_StoreChain_Master_Setup.exe`): Multi-branch retail inventory replication, cryptographic transfer manifests, and peer-to-peer ledger sync without cloud databases.
   - Link: https://quantify17.gumroad.com/l/rql-storechain

5. **RQL Conduit?** (`RQL_Conduit_Master_Setup.exe`): Multi-WAN channel bonding, automatic failover engine, zero-cloud VPN, and sub-1ms network link aggregation for mission-critical trading and billing desks.
   - Link: https://quantify17.gumroad.com/l/rql-conduit

6. **RQL HashCheck?** (`RQL_HashCheck_Master_Setup.exe`): High-speed cryptographic integrity auditing (SHA-256, SHA-512, MD5, BLAKE3) with recursive directory tree verification and tampered file alerting.
   - Link: https://quantify17.gumroad.com/l/rql-hashcheck

7. **RQL QRStudio?** (`RQL_QRStudio_Master_Setup.exe`): Offline forensic QR and 2D barcode generator supporting vector SVG/PNG export, batch dynamic payload encoding, and air-gapped retail labels.
   - Link: https://quantify17.gumroad.com/l/rql-qrstudio

8. **RQL TextDiff?** (`RQL_TextDiff_Master_Setup.exe`): Sub-millisecond Myers vector diff engine, side-by-side legal contract alteration auditing, character-level diff highlighting, and court-admissible change certificates.
   - Link: https://quantify17.gumroad.com/l/rql-textdiff

9. **RQL Renamer?** (`RQL_Renamer_Master_Setup.exe`): High-throughput batch file rename engine with real-time atomic rollback, Regex token substitution, and EXIF/ID3 metadata pattern insertion.
   - Link: https://quantify17.gumroad.com/l/rql-renamer

10. **RQL TagEditor?** (`RQL_TagEditor_Master_Setup.exe`): Forensic ID3v1/ID3v2, FLAC, and OGG Vorbis audio metadata sanitization, batch tag injection, and hidden telemetry stripping.
    - Link: https://quantify17.gumroad.com/l/rql-tageditor

11. **RQL FontViewer?** (`RQL_FontViewer_Master_Setup.exe`): High-DPI typographic glyph visualizer, OpenType/TrueType forensic feature inspector, and zero-cloud font library auditor.
    - Link: https://quantify17.gumroad.com/l/rql-fontviewer

12. **RQL DPDPShield?** (`RQL_DPDPShield_Master_Setup.exe`): India Digital Personal Data Protection Act 2023 compliance scanner, automated PII detector (Aadhaar, PAN, phone, email), and cryptographic data sanitization engine.
    - Link: https://quantify17.gumroad.com/l/rql-dpdpshield

13. **RQL PriceTag?** (`RQL_PriceTag_Master_Setup.exe`): Retail shelf edge price tag designer, automated EAN-13/UPC barcode generator, and ESC/POS & standard laser label printing.
    - Link: https://quantify17.gumroad.com/l/rql-pricetag

14. **RQL InvoiceGen?** (`RQL_InvoiceGen_Master_Setup.exe`): Offline GST/VAT cryptographic tax invoice generator, automated HSN/SAC rate lookups, and tamper-evident SHA-256 invoice hashing.
    - Link: https://quantify17.gumroad.com/l/rql-invoicegen

15. **RQL CSVFormat?** (`RQL_CSVFormat_Master_Setup.exe`): Sovereign million-row streaming CSV sanitizer, deduplicator, schema validator, and column transformer with zero RAM crashes.
    - Link: https://quantify17.gumroad.com/l/rql-csvformat

16. **RQL PDFMerge?** (`RQL_PDFMerge_Master_Setup.exe`): High-throughput offline PDF merger, page splitter, AES-256 document encrypter, and watermark stripper.
    - Link: https://quantify17.gumroad.com/l/rql-pdfmerge

17. **RQL TaxLedger?** (`RQL_TaxLedger_Master_Setup.exe`): Double-entry general ledger, automated trial balance, balance sheet generator, and GST tax liability estimator for chartered accountants.
    - Link: https://quantify17.gumroad.com/l/rql-taxledger

18. **RQL FileShredder?** (`RQL_FileShredder_Master_Setup.exe`): Department of Defense (DoD 5220.22-M 7-pass) and NIST SP 800-88 Rev. 1 cryptographic file shredder with forensic unrecoverability guarantee.
    - Link: https://quantify17.gumroad.com/l/rql-fileshredder

19. **RQL ClipVault?** (`RQL_ClipVault_Master_Setup.exe`): Encrypted air-gapped clipboard manager with ChaCha20-Poly1305 storage, automated password/token purge timer, and zero background network polling.
    - Link: https://quantify17.gumroad.com/l/rql-clipvault

20. **RQL ImageBatch?** (`RQL_ImageBatch_Master_Setup.exe`): Multi-threaded batch image compressor, WebP/AVIF converter, GPS/EXIF location stripper, and high-DPI resizer.
    - Link: https://quantify17.gumroad.com/l/rql-imagebatch

## Technical Guarantees & Architectural Specs
- **Runtime Environment**: 100% Native 64-bit Windows portable binaries (.exe) and Microsoft Windows Installer packages.
- **Dependencies**: Zero Python, zero Node.js, zero Java runtime dependencies. Pure compiled Rust native binaries.
- **Data Privacy**: Air-gapped execution. Outbound socket creation is physically excluded from core logic. No cloud telemetry, no analytics beacons, no external pingbacks.
- **Licensing Model**: Perpetual binary ownership. One-time purchase via Gumroad. Zero monthly subscriptions or recurring fees.
- **Cryptographic Provenance**: Every release is paired with official SHA-256 hashes and digital authenticity certificates.

## Complete Specification
For the full technical codex, detailed CLI arguments, and schema specifications, refer to [llms-full.txt](https://rehanquantlab.com/llms-full.txt).