Engineering Timeline
A chronological retrospective of software releases, architectural breakthroughs, technical publications, and product evolutions.
HSC Math Solution v1.0.2 Pro Released
Expanded complete textbook coverage for Ketab Uddin & Akkharpatra 1st & 2nd Papers (40+ chapters, 200+ exercises), upgraded 2.5x sharp pinch/double-tap zoom engine, and launched Android home screen continue-reading widget on Google Play Store.
HSC Math Solution Google Play Store Launch
Built and deployed native Android mathematics reader on Google Play Store with dynamic tile sampling, offline book downloads, and Supabase cloud sync.
Official Digital Identity & Knowledge Platform 2.0
Re-architected personal platform with canonical Person entity, multi-category search, deep case studies, and machine-readable discovery layer.
CN File Organizer Beta Release
Launched beta testing for automated desktop file organizer with progressive SHA-256 duplicate detection and transactional rollback logging.
CN Vault v1.1.0 Released
Integrated secure password generation, entropy indicators, encrypted JSON export, and enhanced keyboard navigation shortcuts.
Published 'Designing Local-First Software'
Authored in-depth technical analysis exploring zero-knowledge cryptographic guarantees, Argon2id key derivation, and client-side memory sanitization.
CN Question Extractor Processing Pipeline
Completed automated document parsing engine converting unstructured academic question papers into standardized JSON databases.
CN Vault Initial Production Release v1.0
Built and deployed local-first password vault incorporating AES-256-GCM authenticated encryption and zero cloud footprint.
Published Android Offline-First Systems Analysis
Documented reactive data pipelines, Room database as single source of truth, and background WorkManager synchronization.
EAP Tracker Production v1.2 Deployed
Released native Android application supporting engineering admission test preparation tracking with offline-first synchronization.
Started EAP Tracker Project
Initiated engineering admission preparation platform to solve syllabus retention tracking and preparation velocity.