Japan Digital Art Background
Nikhil Kumar Rajak · RYZRR

The Way ofthe Builder

I build for the web with a craftsman's patience — precise, deliberate, and made to last.

currently → Full-Stack Developer

Michi

The Path

I'm Nikhil — most people online know me as RYZRR. I'm a full-stack developer who fell for the web the way some people fall for a craft: slowly, then all at once.

These days most of my work happens in the open. Since March 2026 I've had 50+ pull requests merged across the webpack organisation — webpack.js.org, webpack-doc-kit, and webpack itself — plus a few in Node.js's documentation tooling. This year I'm doing it properly, as a Google Summer of Code '26 contributor rebuilding webpack's documentation website.

When I'm not in someone else's codebase, I'm building my own. Liveboard is an open-source API observability platform; AlgoWise turns interview prep into a system instead of a grind. Both taught me more than any tutorial could — mostly that shipping is a skill of its own.

At a glance

Based in
India
Focus
Full-stack / TypeScript
Currently
GSoC '26 @ webpack
Open source
60+ PRs merged
Waza

The Craft

The tools I reach for. A weapon is only as good as the hand that wields it — I keep these sharp.

Languages

言語
  • TypeScript92
  • JavaScript90
  • Python76
  • C++70

Frontend

  • React90
  • Next.js90
  • Tailwind CSS88
  • Motion78

Backend

  • Node.js88
  • Express85
  • Mongoose82
  • REST APIs88
  • FastAPI50

Data & Tools

道具
  • MongoDB84
  • PostgreSQL82
  • Prisma80
  • Git & GitHub92
  • Docker72
Sakuhin

The Works

Liveboard screenshot
2026

Liveboard

A self-hostable API observability platform — the open-source pieces you'd otherwise assemble from Datadog, Sentry and a status page. One line of middleware gives you live request metrics, distributed traces, error tracking and AI-written incident summaries, streaming over WebSockets. Multi-tenant, with SDKs for both Node and Python.

Next.jsTypeScriptPythonPostgreSQLDocker
AlgoWise screenshot
2026

AlgoWise

Technical interview prep, company by company. Tracks 1,263+ tagged problems across 187 companies, schedules re-reviews on a forgetting curve, scores how ready you are for a specific company, and runs live 1v1 coding duels in an in-browser editor.

Next.jsTypeScriptPrismaPostgreSQLReact
Rireki

The Journey

2026 — Present· Remote

Contributor — Google Summer of Code '26

webpack · Node.js

  • Selected for GSoC '26 to rebuild webpack's documentation website — the project I proposed after prototyping it as three standalone proofs of concept.
  • 53 pull requests merged across webpack.js.org, webpack-doc-kit and webpack/webpack — schema-driven MDX generation, theme and sidebar work, accessibility fixes, and CI audits (Lighthouse, CodeQL, zizmor).
  • Contributed to Node.js too: parser fixes and test coverage in doc-kit, plus navigation fixes on nodejs.org.
2024 — 2025

Full-Stack Developer

Hackathons & collaborative builds

  • Semi-finalist at HackOn with Amazon, Season 5.
  • Built secureAuth for the Canara Suraksha hackathon — a net-banking dashboard with JWT sessions, anomaly alerts and transaction mapping.
  • Shipped features into JeevanDaan and MarketLens, and joined Hacktoberfest 2025.
2023

Where it began

Self-taught

  • Started with curiosity and a browser's dev tools.
  • Turned tutorials into projects, and projects into a craft.
Manabi

The Lessons

A few things the work has taught me — the kind of lessons you only learn by shipping, breaking, and trying again.

01

Simple survives

The clever solution feels great for a week. The simple one is still readable a year later. I optimise for the version of me who comes back later, confused.

02

Ship, then sharpen

A shipped B+ beats a perfect draft that never leaves the branch. Real feedback only lives in production.

03

Read the source

The fastest way to level up was to stop guessing and open the library. Everything is just code someone else wrote.

04

Fundamentals compound

Frameworks change; the browser, the network, and data structures don't. Time spent on basics pays interest forever.

Tsukuru

The Forge

The forge is always warm. Here's what's on the anvil right now.

Forging

Tryvix

A B2B SaaS tool for D2C fashion founders. My main product bet — everything I've learned about shipping, pointed at a real business problem.

Forging

webpack's new documentation site

My GSoC '26 project. A schema-driven pipeline that generates docs from webpack's own validation schema, so the pages can't quietly drift away from the code.

Planned

Groundhog

Never re-explain yourself to an AI again. An experiment in persistent project context — currently on its second, pivoted design.

Shipped

This very website

A Japanese-inspired home on the web, hand-built with Next.js, Motion and a lot of tea.

Tanren

The Discipline

Algorithms are the kata of this craft — the same forms, repeated until the hand knows them. I solve in C++, and I write down what each one taught me.

Ritsu

The Rhythm

Every square is a day at the forge. I care more about showing up than about any single burst — consistency is its own kind of craft.

LessMore

Latest strikes最近

all activity ↗