A self-hosted workspace for consulting time, contractual review, invoices, payments, and reporting—with an assistant that turns descriptions of completed work into a reviewable action plan.

Template-driven data service: define a table, its UI, role permissions and actions in one JSON template and get a database table, REST API and React UI, with no code change and no restart. Spring Boot 4, Java 21, React, SQLite.

A modern digital banking platform built with Next.js, Spring Boot, and PostgreSQL

A full-stack event management platform that simplifies the complete event lifecycle, from event creation and ticket booking to QR-based ticket verification at the venue.

Trace conflicting return records to their sources, inspect changed context and prepare support follow-ups. Java, React and FalkorDB; synthetic hackathon demo.

Mark Tuttime Backend – restaurant booking & pre-order platform: Spring Boot microservices, Kafka, gRPC, Redis, PostgreSQL/PostGIS, K3s/Kubernetes

連鎖餐飲進銷存系統（Spring Boot 3.5 + MySQL 後端）｜Spring Security JWT、交易扣庫存＋樂觀鎖、ProblemDetail 錯誤格式｜JUnit 測試＋CI｜Docker Compose 一鍵啟動

独立多租户 IAM：账号/会话/企业/角色/审计，Spring Boot 4 + Sa-Token + PostgreSQL RLS + Vue 3

代码库知识问答与 Bug 分析 Agent（由仓库所有者在 AI 辅助下完成的学习项目）| Codebase Q&A & bug analysis agent — Java 21 · Spring Boot 3 · Vue 3 · RAG（导入→索引→检索→证据→引用来源）

Personal task REST API built with Java 21, Spring Boot, PostgreSQL and JWT; tested with Testcontainers and Docker Compose.

High-concurrency distributed results platform built to survive result-day traffic spikes. Features Microservices, horizontal scaling, multi-shard PostgreSQL, Redis cache-aside, Spring Cloud Gateway filtering, and an atomic publishing saga. Benchmarked with k6: slashed p95 latency by 99.8% (6.4s → <10ms) at 500 req/s.

A Spring Boot hotel booking and management system for managing hotels, rooms, availability, and reservations.

企业报销软件用户反馈与功能改进助手：biglv666 全家桶 8 组件整合演示（AI 约束式工具调用 / 状态机 / 行级权限 / 事务消息 / 三级缓存 / 并发防护）

REST API for project and task management built with Java, Spring Boot, PostgreSQL, Redis and Kafka.

FlowSync Pro is a modern full-stack team operations and task management platform built with Java Spring Boot, React.js, and PostgreSQL. It features CRUD operations, task tracking, blocker management, handover summaries, secure authentication, an animated dashboard, and Docker-based deployment on Render.

API REST de AutoDrive Motors para gestionar clientes, vehículos, ventas y mantenimientos, con Spring Boot, JPA, base de datos relacional, validaciones y conversión de COP a USD mediante una API externa.

Keeps an order, its payment and its stock consistent across services, and undoes them cleanly when one step fails.

Conversational RAG platform. Upload PDFs and query them using Spring AI, PgVector HNSW, and LLMs.

Microservicio de gestión y seguimiento de envíos para e-commerce desarrollado con Spring Boot y Java 25, con máquina de estados, cálculo automático de tarifas, arquitectura limpia y cobertura completa de pruebas.

Benchmark of Java rules, Jev (TypeSafe AI) and Claude Haiku 5.5 for warehouse goods-receipt triage, built with Spring Boot and Spring AI.

AI-powered codebase assistant using Retrieval-Augmented Generation (RAG), Spring Boot, Next.js, Gemini, and PostgreSQL with pgvector for repository-aware conversations.

Concurrent event ticket booking: Spring Boot, PostgreSQL and React with optimistic/pessimistic seat locking, OTP verification and load tests.

Digital-bank core REST API built with Java 21 and Spring Boot 4: idempotent transfers, row-level locking, JWT auth, and a loan state machine.

Telematics data platform built with Java, Spring Boot, Python, MySQL, Docker, and automated testing.

RESTful campus recruitment API built with Java 21, Spring Boot 4, Spring Security (JWT), MySQL, Redis caching, and OpenAPI 3.1 (Swagger UI).

API de seguimiento de candidaturas de empleo en Java 21 y Spring Boot

API Java 21/Spring Boot para validação inteligente de documentos (comprovante de residência). Em desenvolvimento: motor de regras pronto; OCR com Tesseract, OpenCV e IA planejados. Mentoria Avanade 2026.2.

Living sequence diagrams: interactive reports of how your services talk, from tests, code or by hand. Spring Boot, http4k, Ktor, JUnit and Cucumber today.

Open-source B2B outsourcing platform for small machining factories: process-level demands, two-stage bidding, capacity matching, staged fulfilment, QC, escrow settlement and credit scoring. Spring Boot 3 / Vue 3 / HarmonyOS.

Juego de rol narrativo de terror cósmico impulsado por IA, con campañas persistentes, decisiones con consecuencias, estado de mundo verificable y proveedores de modelos intercambiables.