SYSTEM_STATUS: ONLINE

// OCI_HOST: 129.225.87.114 (AMPERE A1 ARM64)

// REVERSE_PROXY: CADDY 2 (AUTO TLS)

// CORE: RITUAL.FOOD (v1.16.0)

HARSHA VARDHAN KANNA
SYSTEMS & CLOUD ENGINEER

Architecting distributed full-stack web platforms, dedicated 24/7 Linux cloud infrastructure, and autonomous AI systems. Creator of Ritual (ritual.food) and author of the Ultimate Linux Guide.

EXPLORE PLATFORMS ↓

01 // FLAGSHIP SAAS

ritual.food

Dedicated Production OS

02 // CLOUD INFRASTRUCTURE

24/7 OCI

Ampere A1 ARM64 VM

03 // CORE RUNTIME

Node 22 + Next 14

MongoDB Atlas + Caddy

04 // DOMAIN DISPATCH

contact@

harshavardhank.com

01 // WHICH TECHNOLOGIES I USE

CORE ENGINEERING STACK

Hover or click the orbiting nodes around the radar dial to inspect architectural competencies and runtimes.

<sys>

Linux / Kernel

Linux & Kernel

Next.js 14

OCI & Caddy

AI & Vision

Linux Kernel & System Internals

Low-level system architecture, process trees, POSIX permissions, kernel memory management, and high-performance server tuning. Author of the open-source Ultimate Linux Guide.

RUNTIME

Ubuntu 24.04 ARM64

SHELL

Bash / Zsh

PROTOCOL

HTTP/2, HTTP/3, TLS

02 // INFRASTRUCTURE & DESIGN SYSTEM

PROJECT GOAL & ARCHITECTURE VIEWPORT

Production architecture matrix running 24/7 on dedicated cloud infrastructure without serverless execution limits.

VIEWPORT // RITUAL.FOOD & HARSHAVARDHANK.COM

[ DEPLOYED SOLUTION // DEDICATED ORACLE CLOUD (OCI) ARM64 ] ---------------------------------------------------------------------- • 24/7 PERSISTENT COMPUTE: Dedicated 4-core Ampere A1 ARM64 VM running long-running Node 22 processes. • CADDY 2 REVERSE PROXY: Automated Let's Encrypt TLS termination for both ritual.food & harshavardhank.com. • DOCKER COMPOSE ORCHESTRATION: Seamless zero-downtime container swaps with warm MongoDB Atlas pools. • WEB AUDIO PROCEDURAL DSP: Algorithmic synthesis of 10Hz binaural waves & rain with zero audio asset storage.

01 // TYPOGRAPHY MATRIX

02 // DESIGN TOKENS

03 // VERIFIED PLATFORMS

FEATURED ENGINEERING PROJECTS

Production platforms, open-source documentation repositories, and machine learning prototypes.

Ritual (v1.16.0)

⭐ PRODUCTION SAAS

Full-stack daily habit tracker, task manager, day planner, and media operating system. Deployed 24/7 on a dedicated Oracle Cloud (OCI Always Free) Ubuntu ARM64 compute instance with Caddy 2 automated TLS and warm MongoDB Atlas connection pooling.

Next.js 14 Dedicated OCI VM Caddy TLS MongoDB Web Audio API Pusher

Ultimate Linux Guide

📖 OPEN SOURCE

A comprehensive Linux systems administration and DevOps handbook covering kernel vs userspace, process management, file permissions, disk management, and networking.

Linux Kernel DevOps Bash Networking Storage

Next.js Gemini AI Platform

🤖 MULTIMODAL AI

Full-stack generative AI suite integrating Google's Gemini models with Next.js for multimodal reasoning, code orchestration, and structured task extraction.

Google Gemini API Next.js TypeScript Tool-Calling

Autonomous Shopping Cart Robot

🛒 APPLIED ROBOTICS

Intelligent customer-following mobile robot prototype integrating OpenPose skeletal tracking and Gated Recurrent Units (GRU) for real-time human trajectory anticipation.

Python OpenPose GRU Networks Computer Vision

Real-Time Facial Recognition

👁️ OPENCV VISION

Real-time computer vision system utilizing Python, OpenCV, and facial landmark alignment to detect and identify human faces in high-throughput video streams.

Python OpenCV Biometrics GUI

Procedural Soundscape Engine

🎵 AUDIO DSP

Algorithmic Web Audio synthesizer generating multi-layer natural rain, ocean swells, and 10Hz binaural alpha brainwaves in real time with zero external audio assets.

Web Audio API DSP Synthesis JavaScript Ritual Core

04 // CHRONICLE

THE ENGINEERING TRAJECTORY

How curiosity for operating system fundamentals evolved into full-stack architecture and dedicated cloud operations.

PHASE 01 // LINUX SYSTEMS & OPERATING SYSTEM MECHANICS

Began by demystifying computer abstractions: process trees, signals, virtual memory, POSIX permissions, disk partitioning, and bash scripting. Authored and curated the open-source Ultimate Linux Guide.

Linux Kernel POSIX Bash / Zsh TCP/IP

PHASE 02 // APPLIED AI & COMPUTER VISION ROBOTICS

Engineered an Autonomous Shopping Cart Robot combining OpenPose human skeletal tracking and Gated Recurrent Units (GRU) to anticipate human movement. Built real-time OpenCV facial identification pipelines.

OpenPose GRU Networks OpenCV Python

PHASE 03 // FULL-STACK ARCHITECTURE & LIQUID UI

Mastered modern full-stack engines: Next.js 14 (App Router), React, and Zustand. Created bespoke liquid-glass UI paradigms with Snell optical refraction physics, Web Audio API procedural synthesis, and WebSockets.

Next.js 14 React Web Audio API Pusher WebSockets

PHASE 04 // 24/7 DEDICATED ORACLE CLOUD (OCI) SCALE

Deployed and maintained Ritual (ritual.food) and harshavardhank.com on a dedicated Oracle Cloud Infrastructure Ubuntu ARM64 instance with Caddy 2 automated Let's Encrypt TLS and warm MongoDB Atlas connection pooling.

Dedicated OCI VM Ubuntu ARM64 Caddy 2 TLS MongoDB Atlas

05 // COMM CHANNEL