Dharmanshu
Kumar

developing the obv

A bit about me

I'm mildly obsessed with the idea that most software has too many dependencies and too little control. So I started building the layer underneath - the networking, the databases, the parts nobody thinks about until they break.

I like problems where "it works" isn't the finish line - where you also need to know why it works, what happens when the network lies to you, or what breaks first under load. That's led me down a lot of rabbit holes: kernel-level packet tunneling, on-device ML, and enough small self-hosted tools that I've basically become my own IT department.

If it involves networking, databases, or an excuse to avoid a dependency, I've probably already built it - right alongside an unreasonable number of small tools nobody asked for.

That said, code is the part of my life I happen to be good at, not the whole of it. I build things because it's genuinely fun, not because I'm chasing a personality around a GitHub graph. Based in the Himalayas, which does wonders for perspective when your code doesn't compile.

Tools of the trade

01 // SYSTEMS & CORE
TCP/UDP Tunneling VPN Protocols
Linux Networking Sockets · iptables
Kotlin Android Native
TypeScript Web · Systems
Go Concurrency · Net
Nginx Reverse Proxy · TLS Termination
systemd Service Management
02 // BACKEND & DATA
Node.js Event Loop · APIs
FastAPI & Python Async · ML Pipelines
PostgreSQL Relational Schemas
Redis PubSub · In-Memory
QUIC & WireGuard mTLS · Encrypted
WebSockets Real-Time · Telemetry
Firebase / Firestore NoSQL · Real-Time Sync
03 // MOBILE, AI & INFRA
Android SDK NDK · Jetpack
React Native Cross-Platform
Gemini API Multimodal LLMs
TensorFlow Lite On-Device ML
Docker Containers · Swarm
OCI (Oracle Cloud) VPC · Cloud Nodes
Cloudflare Workers Edge Compute · KV
GPU Data Pipelines cuML · CuPy

Things I've built

Stockflow AI↗
Spring Boot · FastAPI · Gemini · MCP

Hackathon AI supply-chain platform; built backend hazard logic and mobile integration.

shadowlink / tunnel↗
Rust · Go · QUIC · mTLS

DPI-resistant VPN tunnel, built in both Rust and Go with different evasion strategies.

NetPulse↗
Node.js · WebSockets · Nginx

Self-hosted network diagnostics platform built to get honest bandwidth and jitter numbers, no compression tricks inflating the result.

Raft KV↗
Go · Raft Consensus · WAL · Chaos Testing

Distributed key-value store implementing Raft consensus from scratch, verified against a chaos harness that kills nodes mid-write.

HyperShare↗
Node.js · Express · Wi-Fi 6

87 MB/s peer-to-peer LAN file transfer with zero cloud dependency.

Small Tools, Big Range↗
Python · Aria2 · Terminal/CLI

A grab-bag of self-contained utilities: cloud pipelines, a URL shortener, solvers, and snake.

Specializations & Accreditations

  • Google Cloud Certified (GCD) Advanced
  • Google Cloud Certified (GCD) AI
  • Google Generative AI Specialization
  • Google Cloud GenAI Leader
  • IBM Enterprise Workplace Systems
  • AWS Certified Professional
  • Cyber Security Specialization

Nothing clever here.
Just say what you need ;
I check messages more reliably than I check my sleep schedule.

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Dharmanshu Kumar

developing the obv

Database architecture & low-level networking systems.
Best experienced on desktop for full ASCII rendering engine.