DevLearnHub Blog
Deep dives into AI tools, entrepreneurship, and the mindsets that separate good builders from great ones.
Hritik Raj
AI Full Stack DevAvailable for workBuilding AI-powered web experiences. Specializing in Next.js, TypeScript & LLM integration. Creator of DevLearnHub a learning platform where developers learn by building.
Skills & Stack
Languages
Frontend
Backend
AI & LLM
Databases
Cloud
DevOps
Security
Blockchain
The Else Of Life
A story about what survives the noise
Some things happen to you slowly so slowly that you don’t notice until one ordinary afternoon, sitting somewhere unremarkable, you realise you are not the same person who started the sentence. The Else Of Life begins there.
This is not a story about arriving. It is about the roads that don’t appear on any map the moments of doubt nobody witnesses, the quiet losses that leave no scar you can point to, and the things life teaches you only after it has already taken something away. It carries real events, real feelings, and the learnings I could only understand in hindsight.
“Some chapters of this book I wrote because I had to.
Others I wrote because I was afraid if I didn’t, no one would ever know that part of the road even existed.”
The rest unfolds inside. No spoilers.
AI Stack Explained Interactive Diagrams
Explore animated wireframe diagrams for LLMs, Agentic AI, MCP, ML Pipelines, Vector DBs & MLOps. Hover nodes to trace live data flow.
AI Events Calendar
Major milestones in AI
On this day
DevLearnHub AI Calendar goes live
Mar 12, 2026
Mar highlights
Gemini CLI: The Complete Setup & Usage Guide for Developers
Google's Gemini CLI brings the full power of Gemini AI directly into your terminal — letting you summarize files, write code, debug errors, and query your entire codebase without ever leaving the command line.
The AI Developer Stack: 10 Tools Reshaping How We Build Software in 2026
We are past the hype cycle. AI coding tools are no longer experimental — they are the competitive advantage that separates fast-shipping teams from everyone else. Here is the full stack every developer should know.
MCP Explained: The Protocol That Lets AI Agents Control Your Entire Dev Environment
Model Context Protocol (MCP) is the open standard that lets AI assistants like Claude, Cursor, and Gemini connect to real tools — your filesystem, databases, GitHub, browser, and beyond — and take actions, not just generate text.
The Hidden Price of Extraordinary Success: The Four Burners Theory
They show you the product launch, the funding round, the magazine cover. They don't show you the missed dinners, the abandoned gym routines, the friendships that slowly went quiet.
Everything in DevLearnHub
Every feature packed into the full platform
PDF Resource Library
Category-organized PDFs hosted on AWS S3 + CloudFront CDN with credit-gated premium access
In-Browser PDF Reader
Full-featured viewer with zoom, search, dark mode, page tracking and inline page bookmarks
Notes & Bookmarks
Bookmark any PDF page with a note and write per-document notes — everything synced to your account
Reading Analytics
Tracks per-file reading time, current page and completion percentage, persisted in MongoDB
Auth & User System
JWT auth with bcrypt, role-based access (user / admin), email verification and a 100-credit default wallet
Credits Economy
Gamified credit system for premium PDF downloads — users request top-ups, admins approve via dashboard
Telegram Integration
Telegram Bot sends reading reminders and admin can broadcast messages to all active subscribers
Admin Dashboard
Manage users, approve credit requests, view platform stats and send broadcast notifications
Blog & AI Calendar
Deep-dive articles, AI milestones calendar with 27+ events, daily streak tracking and newsletter
Built With
The full stack powering DevLearnHub
Frontend
Frontend
Backend
Backend
Database & Storage
Database & Storage
AI & Integrations
AI & Integrations
DevOps & Infra
DevOps & Infra
Mail & Comms
Mail & Comms
Testing & Validation
Testing & Validation
UI & Design
UI & Design
Frontend
Backend
Database & Storage
AI & Integrations
DevOps & Infra
Mail & Comms
Testing & Validation
UI & Design
System Architecture
End-to-end data flow & infrastructure — the whole application
1 · Client
Web Browser
HTTPS · SSR · CSR
Mobile PWA
Service Worker · Offline
2 · Edge & CDN
Vercel Edge
SSL · Global CDN · Deploy
CloudFront
PDF delivery · Low latency
Nginx
Reverse proxy · Load balance
3 · Application — Next.js 14 · Pages Router
PDF Library
/ · /category/*
PDF Viewer
In-browser reader
Blog
/blogs · /blogs/[slug]
Auth Pages
Login · Signup
Admin Panel
/admin · dashboard
Notes & Saves
/notes · /bookmarks
4 · API Layer — Next.js API Routes · Node.js · JWT Guard
/api/auth/*
login · signup · me · logout
/api/files
S3 listing · categories
/api/user/*
progress · bookmarks · notes · credits
/api/download
credit check · S3 signed URL
/api/admin/*
stats · users · credit approval
/api/telegram/*
subscribe · broadcast
5 · Services & Integrations
JWT + bcrypt
Auth · RBAC · Cookies
AWS S3
PDF storage · signed URLs
OpenAI GPT
AI completions · blog assist
Telegram Bot
Polling · reminders · broadcast
Mail (Nodemailer)
SendGrid · AWS SES
6 · Data Layer
MongoDB
users · notes · bookmarks · progress · Telegram subscribers
Supabase / PG
file metadata · analytics · RLS row-level policies
DynamoDB
high-throughput alt storage · session data
Redis
rate limiting · cache · real-time leaderboards
7 · DevOps & Observability
Stay in the loop
New articles on AI, real learnings, and tools that actually matter — straight to your inbox. No spam.
Join readers who build with AI