U-PG-RAG, a campus Q&A backend system, is built on PostgreSQL (PG).U-PG-RAG是一个基于postgresql(PG)构建的校园问答后端系统

企业级即时通讯系统（IM平台），支持私有化部署、团队协作与实时通讯，适用于企业办公、内部沟通及可扩展通信系统构建。企業級即時通訊系統（IM平台），支援私有化部署、團隊協作與即時通訊，適用於企業辦公與可擴展通訊系統。

This repository shows a minimal integration of Chronos Engine inside a Godot game.

Learning different databases using Go.

A distributed key-value store built in Go with Raft algorithm (ongoing).

Cold email automation infrastructure with domain warm-up, SPF/DKIM/DMARC setup, inbox rotation, and scalable outreach campaigns using SMTP services.

ChatPDM: deterministic language governance system (no drift, no generation, constraint-based resolution)

AI-powered data migration system that converts unstructured data (JSON/CSV/XML) into structured relational databases using NLP, anomaly detection, and automated SQL generation. Built with FastAPI and deployed end-to-end.

A Core Java–based IRCTC backend simulation that models train booking, cancellation, and user management. Built using Object-Oriented Programming and Java Collections to demonstrate modular design, synchronization, and console-based data flow. A clean, recruiter-friendly SDE-1 mini project showcasing Java fundamentals, data handling, and Maven build

Infrastructure monitoring and alert management system that tracks system metrics and triggers alerts when thresholds are exceeded.

MoveX is a modern logistics and courier management system designed for small and mid-scale delivery networks. It provides role-based dashboards, shipment tracking, booking workflows, analytics, and secure backend architecture built with Node.js, Express, and PostgreSQL.