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PORTFOLIO · GRADE X · BUILD LOG 2026

SREE RANGARAJ K · DEVELOPER & BUILDER

Grade 10 Developer | Python • ML/DL • Web Dev • Ethical Hacking

IIT/NIT Aspirant | Building an Operating System | Practical Learner

Practice first. Theory later. Build always.

OPEN TO BUILD MADURAI · TN · INDIA uptime: 100%
rangaraj@kali: ~/whoami

        

Currently learning

Custom OS Development — bootloader, kernel, memory. Deep in the metal.

Hover me

Curiosity. Coffee. Code.

Two cards from my desk and four notes off the wall. Hover anything that looks pinned.

SBOA School Madurai

Student Identity · CBSE

Name
SREE RANGARAJ K
Grade
X (CBSE)
School
SBOA School, Madurai
Status
Above Average Performer
Specialties
Quizzer | Mathematics | Tech-Savvy
Interests
Web Dev, Python, ML/DL, Ethical Hacking
Personality
Naughty but Skilled
ID · SBOA-X-2026

Codingal Certificate

Verified Credential

Student
SREE RANGARAJ K
Program
Advanced Computer Science
Status
Completed & Certified
Skills
Full-Stack Dev, ML/AI, Security Concepts
Unlocked
Advanced Coder Badge
ISSUED · 2024

Curiosity. Coffee. Code.

I learn by doing, not memorizing.
Practice > Theory (always).

Quizzer · Cricket · Volleyball · Calisthenics

The kid who fixes things

Big ego (working on it).
Good at what I do.
Teacher's go-to person.

"Why?" is my favourite question

Dreams & goals

JEE aspirant → IIT/NIT.
Top package goal.
Building a custom OS.

No compromise on quality

Practical mind

Electronics enthusiast.
Arduino & ESP tinkerer.
Problem solver.

Builder, not just learner

Where I Learn(ed)

Piped straight out of education.log — no edits.

rangaraj@kali: ~/cat education.log

      
XCurrent Grade · CBSE
160HP Hackathon · Global Rank
2Startups Running
1Book Published

Stuff I Actually Use

Hover to peel — each card opens up on how far I've taken it.

01 / WEB

Web Development

4 tools · daily driver

  • HTML5
  • CSS3
  • JavaScript (ES6+)
  • React / Vue basics

Where it clicked: landing pages that used to take me a week now take an evening. Weblyx runs on this stack.

02 / PYTHON

Python & Backend

4 tools · scripting first

  • Python (Core)
  • Flask / Django basics
  • Web Scraping
  • Automation Scripts

If a task repeats twice, I script it. Most of my Python lives in small tools nobody sees but me.

03 / ML · AI

ML / AI / DL

4 tools · model builder

  • TensorFlow trained
  • Scikit-learn trained
  • Pandas, NumPy
  • Model Building

Trained real models, not just tutorials. Next up: getting comfortable with data cleaning at scale.

04 / SECURITY

Security & Ethics

4 areas · ethics first

  • Ethical hacking awareness
  • Privacy advocacy
  • Secure coding
  • Linux basics

Everything here is learn-and-defend. Lab environments only, permission always.

05 / HARDWARE

Electronics & Hardware

4 areas · solder-friendly

  • Arduino programming
  • ESP8266 / ESP32
  • IoT concepts
  • Circuit design basics

Software that moves something physical still beats everything else. This is the fun corner of the desk.

06 / TOOLING

Developer Tools

4 tools · workflow

  • Git & GitHub
  • Linux / Ubuntu
  • VS Code
  • Docker basics

Terminal over GUI when I can. Learning to keep commits small and messages honest.

The Log File

A running tail -f of things I'm proud of. Newest first.

2025 — PRESENT

OS Development Project

Building a custom Operating System from scratch. Learning bootloaders, kernel concepts, Assembly and C.

Status: In progress — 60% learning, 40% building.

2025

HP Global Hackathon

Placed 160 globally. Built an innovative solution with a team under time pressure.

First major hackathon experience — and the fastest I've ever learned anything.

2023-2026

Codingal Certification

Completed the Advanced Computer Science program

Skills validated: Full-Stack, ML/AI basics, Young Web Developer, Python master, Python Game Developer.

2024

Published Author

Released the book "Learn Anything Faster" — my practical learning methodology, written down.

Sold copies to peers and educators.

2023 — PRESENT

Startup Ventures

Weblyx: web development agency building custom websites.

Notlyx: e-book publishing platform, live on Vercel.

Both projects running actively.

ONGOING

JEE Preparation

IIT/NIT aspirant in progress. Competitive programming plus problem solving.

Target: top package placement.

Things I Built

Startups, security tools, templates — and one moonshot.

OS WIP · 60%

Custom OS

Biggest project · moonshot

Building a completely custom Operating System from the ground up. This is my passion project — bootloader, kernel, file systems, process management, memory management. A full-circle understanding of how computers actually work.

Why? Understanding systems deeply.
Current: bootloader & kernel concepts.
Next: interrupt handling, memory management.
Challenge: Assembly + low-level debugging.
Status: learning architecture, building MVP.
CAssemblyLinuxBootloadersQEMU
Follow Journey
NX LIVE

Notlyx

E-book platform · startup

Digital platform for selling and sharing e-books. My first entrepreneurial venture — live and running.

First real product with paying interest. Taught me deployment, domains and that shipping beats polishing.
HTML5CSS3JavaScriptVercel
View Live
WX ACTIVE

Weblyx

Web development agency

Custom web development services — professional websites for real clients. Freelance plus startup venture, design and development.

Client work forces discipline: deadlines, revisions, and explaining technical trade-offs in plain language.
HTMLCSSJavaScriptReact
View
PC LOCAL

Password Cupp

Security tool

Password strength checker with recommendations. Checks entropy, patterns and common weaknesses.

Built to learn how password cracking actually reasons about human habits — and why length beats symbols.
PythonJavaScript
View Code
ZP SECURITY

Zphisher

Educational security project

Phishing link detector and awareness tool. Understanding attack vectors, social engineering and malicious URLs.

Defensive framing only: the goal is spotting the fake, not building one. Lab use, permission first.
PythonMachine LearningWeb Tech
Learn More
CP TEMPLATES

Camphish

Landing pages & templates

Professional HTML templates for marketing campaigns and websites. Practice project turned reusable component library.

The library that made Weblyx viable — reuse instead of rebuild.
HTML5CSS3JavaScriptAnimations
Preview
BD TEMPLATE

Birthday Website Builder

Creative web template

Animated personalised birthday website generator — animations, music and messages. Fun and technical, built on client requests.

Canvas animation practice disguised as a gift. Most-requested thing I've ever made.
HTMLCSSJavaScriptCanvas
Try Demo
LX ONGOING

Learning & Experiments

Various mini-projects

A growing collection: ML models, Python scripts, Arduino sketches, web experiments. The sandbox where ideas get tested.

Not everything here works. That's the point of the folder.
PythonJavaScriptArduinoTensorFlow
Explore

Not Done Learning

Here's what I'm actively levelling up on — honest percentages, no rounding up.

Custom OS Development70%
Advanced ML/DL Projects40%
Full-Stack Web Applications50%
Arduino / IoT Advanced30%
Competitive Programming (JEE)60%
Advanced Python Optimization35%
Ethical Hacking Deep Dive45%
Reverse Engineering Basics25%

Q: What's a skill you're currently learning and why?

Custom OS development. It's the ultimate understanding of how computers work — from electrons to the application layer.

Q: What's a project that pushed you out of your comfort zone?

The HP Hackathon. Building something complete in 24 hours — teamwork and innovation under real pressure.

Q: What tools do you want to learn next?

Ghidra for reverse engineering, advanced Splunk, AWS security, and Volatility for memory forensics.

Q: What's something you used to find hard that's easy now?

Web development. HTML/CSS/JS used to confuse me completely. Now I build landing pages in minutes.

Q: What's your favourite type of project to work on?

Anything practical. Build something real, solve a real problem, learn by doing.

Interactive Stuff

Six things to play with. Everything runs locally — zero data leaves this page.

01

Live Caesar Cipher

Type something and drag the wheel.

01325
Shift 13 = ROT13

Zero data leaves this page.

02

Terminal Simulator

Try: help, whoami, skills, goals, joke, ascii, clear

rangaraj@sboa:~$
03

Pinboard

Drag the notes around — positions are remembered.

04

Matrix Rain

The background rain — control it from here.

slowfast
sparseheavy
status: running · speed 5 · density 6
05

Skill Randomizer

Spin it — get a random skill plus a fact.

Ready

Hit spin to pull a random skill from the toolkit.

06

Typing Test

Type the quote. WPM and accuracy update live.

0WPM
100% Accuracy
0Best WPM

Certs & Achievements

Earned, in progress, and honestly labelled as locked.

CERT

Codingal Certification

Advanced Computer Science program — full-stack development and ML/AI foundations.

160

HP Global Hackathon

Placed 160 Globally

Innovation and team problem solving under a hard deadline.

2024Global rank
QUIZ

Quiz Champion

School Level Quizzer

Strong competitive general and technical knowledge across rounds.

SBOARecognition
BOOK

Published Author

"Learn Anything Faster"

A practical learning methodology — published and sold to peers and educators.

2024Published
FNDR

Startup Founder

Weblyx & Notlyx

Two ventures: a web agency and an e-book platform. Both active and running.

2023 →Active
JEE

JEE Qualification

Target · Locked

In preparation. This card unlocks when the result does.

FUTUREIn progress
IIT

IIT / NIT Admission

Target · Locked

The whole point of the preparation. Not claiming it before it's earned.

FUTUREGoal
SEC

Advanced Security Certs

Target · Locked

Planned once the fundamentals are genuinely solid. No shortcuts.

FUTUREPlanned

Say Hello

Questions, opportunities, or just want to talk tech? All three work.

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GitHub

@Sree-Rangaraj89
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