All The Projects That I have done :

Projects range from full-stack applications and AI systems to developer tools, data structures, real-time systems, and browser extensions.

🚀 KuraKani

AI-powered conversational application inspired by ChatGPT

Live: https://kurakani.bivekgharti.com.np/

KuraKani is a full-stack AI application that provides conversational AI with streaming responses, persistent context, Retrieval-Augmented Generation (RAG), long-term memory, and a credit-based usage system.

Key Features

• End-to-end response streaming — LLM responses are streamed from the NestJS backend → Next.js frontend server → browser instead of waiting for the complete response.
• Credit-based usage system — New users receive 5 credits. Each interaction consumes credits, preventing further usage once the balance reaches zero.
• RAG — Users can provide their own knowledge sources through PDFs, YouTube URLs, or web URLs. The extracted content is converted into vector embeddings and stored in PostgreSQL/pgvector for retrieval during conversations.
• Conversation memory — Maintains recent conversation context while also using Mem0 as a memory layer for information from older conversations.
• Payments — Integrated Razorpay to allow users to purchase additional credits.
• Self-hosted infrastructure — Deployed on a VPS using Caddy as a reverse proxy, PostgreSQL/pgvector for persistent data and embeddings, and MinIO for object storage.

Architecture

Frontend: Next.js

Backend: NestJS

Database: PostgreSQL + pgvector

Object Storage: MinIO

Memory: Mem0