Havuz

Monitor your MG car just like the iSmart app can but better

Self-hosted cron job monitoring with ping URLs and email alerts.

Built an AI SaaS Platform that enables users to access multiple AI-powered tools through a unified dashboard, including content generation,

CLI for benchmarking PostgreSQL queries before and after optimization and generating an HTML report.

This is a set of hands-on labs for getting started in PostgreSQL

Self-hosted VPN service platform · Rust · PostgreSQL · Control panel, customer website and Telegram Mini App · RU/EN

Validated, private, shareable knowledge-graph memory for AI — per-tenant, write-gated, PostgreSQL-authoritative, served over MCP.

A full-stack food delivery platform for customers, restaurant owners, and couriers, featuring real-time order tracking. Built with React, Ne

做研究的人都有这种时刻：资料堆了一桌，结论还在雾里。opencli-admin 是一条自托管的研究与情报流水线——可视化编排工作流，采集、AI 处理、证据关联依次就位，数据全程留在自己手里。它做的不是信息的搬运，而是让散落的证据彼此相认。

Evidence-grounded AI daily for reviewed Digests and cited Research.

A platform for running human-centered red teaming evaluations on AI models and systems.

Spring Boot REST API for a Hadith encyclopedia, featuring authentication, role-based access, search, and content administration.

生产级通用 Text-to-SQL 服务：基于 FastAPI + LangGraph + RAG，将自然语言转换为安全可执行的 SQL，内置 SQL Guard、few-shot/schema 检索、限流、缓存、Langfuse 追踪、Prometheus/Grafana 监控

Change Data Capture for PikiwiDB (Pika): point-in-time full snapshot + live incremental stream into Kafka, Doris, Postgres, MySQL

Open-source temporal memory engine for everyday AI applications.

Production-inspired authentication API with Spring Boot, JWT, Refresh Tokens, RBAC, PostgreSQL, Docker, tests and CI/CD.

Rust based Postgres extension that adds query lifecycle events to OTEL traces.

A modern strength-training tracker built with Next.js 16, TypeScript 7, Tailwind v4, and Drizzle. Log workouts, track PRs, and visualize you

🎙️ Adaptive Audio Authentication Engine: Multi-layer voice biometric system with deepfake detection, speaker verification (ECAPA-TDNN), ASR

Local-first, open-source AI assistant platform built with Java, Spring Boot 4 and Spring AI 2.0

SQL query and EXPLAIN plan visualizer for PostgreSQL and MySQL. Turn SQL into flowcharts, inspect query health, and explore execution plans

One npm package. Durable workflows, feature flags, auth, request tracing, rate limiting, caching, metrics, webhooks, CRON, and more — all se

Gradle plugin that generates the actual db schema after applying Liquibase migrations

AI 生图 Web 应用

Terminal-first workspace for supervising AI coding agents (Claude Code, Codex, Gemini): live agent status per project, code viewer + Git, sy

Code-first admin panel for your existing Postgres — introspected CRUD, roles, audit and dashboards in one Rust binary

Sistema Operativo de Memoria y Orquestación para Desarrollo con IA

A Django AI library for generating personalized content recommendation feeds based on pgvector.

生产级 LangGraph + FastAPI AI Agent 框架，支持阿里云 Qwen / DashScope，含中文注释、长期记忆、向量检索完整链路。

(Unofficial WIP) Helm chart for Fitpub — federated fitness tracking platform https://codeberg.org/fitpub/fitpub

A Retrieval-Augmented Generation (RAG) application for querying legal documents. It uses PostgreSQL, Elasticsearch, and LLM to provide summa

A fast, native database explorer, featuring an AI assistant that understands your schema, drafts queries for approval, and turns results int

Next.js B2B quote builder with server-side pricing (Prisma + Postgres), live line-item breakdown, PDF export, and optional AI chat. Supabase

AI-powered local e-commerce & CRM platform connecting sellers and customers with smart recommendations and delivery optimization.

面向中文内容创作者的 AI 写作工作台 | Harness 单层 Agent 编排 · 多源检索 · 风格化写作 · 质量评审 · 分层记忆 · 编辑部多 Agent 协作

An opinionated Go framework and agentic development harness for building serious business software with speed, structure, and safe boundarie

The enterprise REST API backend for a B2B directory platform built with NestJS 11, TypeScript, PostgreSQL 17, and Prisma 7 ORM. Features aut

Full-stack portfolio platform with live editing, JSON-based rendering, static exports, and GitHub integration.

Hunt for CVE-2026-18963 exploitation traces (Keycloak unauthenticated account takeover) in the Keycloak database

End-to-end retail lakehouse on Databricks: dual-path ingestion from PostgreSQL and S3, dbt-modeled galaxy schema with SCD2 history, Airflow

📱 Aplikasi Seluler Android (Flutter), Backend (FastAPI), dan Decision Engine AI Adaptif (Monorepo)

📱 Aplikasi Seluler iOS (Flutter), Backend (FastAPI), dan Decision Engine AI Adaptif (Monorepo)

🎓 Platform Inovasi Teknologi AI dengan Asesmen Diagnostik Adaptif Pemulih Literasi Membaca (Web Control Center)

AI-powered platform for intelligent event orchestration, automated team formation, judge assignment, evaluation integrity, and multi-round c

Self-hosted pentest engagement management and report.

Open-source async Task platform for Node.js, NestJS and Go — PostgreSQL/BullMQ queue, Task API, realtime UI and safe recovery.

Hệ thống duyệt nghỉ phép nội bộ - mini SE project. Spring Boot 3.5 + React 19, JWT phân quyền 3 vai trò, Docker, CI. Mỗi quyết định kỹ thuật

AI study platform for generating summaries, flashcards, quizzes, and mind maps from documents, videos, podcasts, and web articles.

Storage engine for AI agents to navigate, store, and retrieve structured data. PostgreSQL ltree, built-in versioning, scoped queries.

Real-time stock price alerts built to learn system design: Laravel API with a transactional outbox, Node evaluator on Kafka (Redpanda), Redi