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parv68/README.md

Building Local-First Infrastructure for Developers

Creator of DevBoxOS, VaultSync, Aegis, and StegaShare. Focused on Rust, Go, TypeScript, and production-grade developer tooling.

Systems Engineer & Full Stack Developer

I build production-grade open-source infrastructure β€” embedded runtimes, sync engines, authorization systems, and developer tools β€” mostly in Rust, Go, and TypeScript. When I'm not designing systems, I'm building full-stack web apps with the MERN stack.


πŸš€ Skills & Technologies

Systems & Infrastructure

Rust Go WebAssembly Docker PostgreSQL SQLite

Full Stack Web

TypeScript React Node.js Express MongoDB TailwindCSS Next.js

Tools & Platforms

Git GitHub AWS Linux Cloudflare


πŸ—οΈ Open Source Projects

🌌 DevBoxOS β€” Universal Development Sandbox

Spin up fully configured, reproducible development environments with a single command.

A local-first dev environment manager. Define your entire stack in devbox.yml, run devbox start, and everything is wired up β€” dependency resolution, health checks, hot reload, snapshots, and encrypted secrets.

  • Go + gRPC architecture: CLI ↔ Engine daemon ↔ Docker API
  • Auto-detects Node, Go, Rust, Python, Java, Ruby, PHP, PostgreSQL, MySQL, Redis, MongoDB
  • Encrypted secrets via age (X25519 + ChaCha20-Poly1305)
  • Snapshots: save, export, import, and restore full environment state
  • Docker Compose import/export, CI workflow generation, real-time resource monitoring
  • 16 releases shipped; cross-platform (Windows, macOS, Linux)

Go Docker gRPC DevTools CLI Infrastructure


🌌 VaultSync β€” Local-First Sync Runtime with E2EE

Conflict-free, end-to-end encrypted, infrastructure-agnostic synchronization for the local-first era.

An embedded sync engine that makes apps work instantly offline, sync automatically when online, and feel 0ms fast β€” because every read/write hits a local database, never a server.

  • CRDT-native (Yrs): LWW-Register, PN-Counter, OR-Set, rich text β€” conflicts are impossible
  • Zero-trust E2EE: coordinator never sees plaintext; X25519 + ChaCha20-Poly1305 encryption
  • Multi-tab safety: leader election via BroadcastChannel + navigator.locks, heartbeat crash recovery
  • Infrastructure-agnostic: Coordinator is a Rust trait β€” plug in Postgres, Redis, Cloudflare DO, or your own
  • React hooks (useQuery, useSyncStatus), OpenTelemetry, Prometheus metrics

Rust WASM TypeScript CRDTs Local-First E2EE Offline-First


πŸ” Aegis β€” Embedded ReBAC Authorization Runtime

Authorization should feel like a library, not infrastructure.

An embedded, relationship-based authorization (ReBAC) engine inspired by Google Zanzibar and SpiceDB β€” but built to run inside your application process with zero separate infrastructure. Think SQLite, but for permissions.

  • Rust core with NAPI (Node.js), PyO3 (Python), and CGo (Go) bindings
  • Recursive graph traversal with cycle detection and parallel sibling evaluation
  • YAML-defined permission schemas with hot-reload and version tracking
  • Revision-based snapshot isolation β€” every mutation produces a monotonic revision token
  • SQLite (WAL), PostgreSQL, MySQL, and RocksDB storage backends
  • Full audit trail, explain API, GDPR compliance, multi-tenancy

Rust TypeScript Go Python ReBAC Authorization Embedded Systems


πŸ”’ StegaShare β€” Professional Steganography Tool

Hide any file inside an ordinary image β€” entirely on your device.

A cross-platform steganography app that hides any file (PDF, ZIP, DOCX) inside a carrier image using AES-256-GCM encryption and LSB pixel manipulation. Runs in the browser, on desktop, and on mobile.

  • Rust core (stega-core) with WASM bridge for browser and Tauri IPC for desktop
  • AES-256-GCM + PBKDF2-SHA256 (200,000 iterations, random 96-bit salt + IV)
  • LSB pixel steganography: 1 bit per RGB channel per pixel
  • Zero-knowledge: all operations run locally, no network calls ever
  • Next.js 16 + React 19 frontend with Zustand state; Android/iOS via Tauri v2

Rust WebAssembly Next.js Tauri Cryptography Security


πŸ“Š GitHub Stats

GitHub Stats Top Languages

GitHub Contributions Graph GitHub Streak Stats

⏳ WakaTime Stats

Commits per Day


πŸ“« How to reach me

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  1. ParvLab/DevBoxOS ParvLab/DevBoxOS Public

    Local-first development sandbox platform for reproducible multi-service environments with one-command setup, orchestration, snapshots, secrets, logs, and isolated runtime management.

    Go 4

  2. ParvLab/VaultSync ParvLab/VaultSync Public

    Embedded local-first sync runtime for building offline-capable applications with automatic conflict resolution and eventual consistency.

    Rust 1

  3. ParvLab/StegaShare ParvLab/StegaShare Public

    Hide encrypted files inside ordinary images locally on your device using modern cryptography and LSB steganography. Cross-platform steganography tool powered by Rust, AES-256-GCM, WebAssembly, and …

    TypeScript 1

  4. ParvLab/CryptoTrace ParvLab/CryptoTrace Public

    Open-source forensic data classification and cryptographic fingerprinting engine. Analyze unknown data, detect formats, unwrap layers, and explain findings.

    Rust 1

  5. ParvLab/AEGIS ParvLab/AEGIS Public

    Rust 1