历史学习项目：Spark 电影推荐、爬虫、Web 与后台。新版持续开发见 cinematch-recommender。
基于Spark2.x新闻网大数据实时分析可视化系统项目
Multi-service banking application built with Spring Boot, Eureka, Spring Cloud Gateway, Keycloak, and MySQL. Learning project — see the Arya Banking org for the event-driven platform.
ncurses 3d object viewer
lytlnyblOS (little nibble OS) is a small, from scratch 32-bit operating system that comes with a complete guide book to teach beginners practically about OS development.
API REST de gerenciamento de receitas em .NET com DDD e Clean Architecture. Autenticação JWT + Refresh Token, login com Google, geração de receitas com IA (OpenAI), mensageria com Azure Service Bus, upload de imagens, suporte a MySQL/SQL Server e testes de unidade/integração com CI/CD no Azure DevOps.
A simple Public Chatroom build with Node.js + Vue.js +QuasarUI
从 0 训练大模型，单卡训练一个 200M 参数模型的全流程（train a 200M‑parameter model from scratch）
People kept telling me my code looked bad. So I wrote a tool to make it worse (on purpose)
Not yet another spectrum analyzer — an experimental DSP & graphics playground. It combines real-time C++ performance with Python flexibility, offering fully customizable FFT visualizations without recompilation. Perfect for audio engineers, DSP researchers, graphics developers, students, and hobbyists.
ANIME.TV - Your personal space to explore, and enjoy your favorite Anime & Manga. Features show detailed information about an anime series, image/GIF galleries, manga reader. and puzzle games.
A Python script demonstrating automated email sending via Gmail SMTP for educational and testing purposes. Supports email format validation, secure password input using getpass, HTML-formatted messages, and controlled loop-based delivery with delays. Intended to teach SMTP authentication and email automation; not for spamming or abuse.
Este dojo es un punto de partida para todas aquellas personas que quieran aprender acerca de la construcción de automatizaciones para pruebas funcionales de aplicaciones Web
C++ console application that converts images into detailed ASCII art by mapping pixel brightness and local shapes to characters. Supports gamma correction, filtering, multi-region shape matching, randomness, and multithreading. Designed for Windows terminals with raster fonts (8×12) for best visual results.
Minimal PHP MVC learning project demonstrating the Model–View–Controller pattern end-to-end. Uses plain PHP with PDO, a front controller, simple routing, and CRUD student management. Designed to teach separation of concerns, prepared statements, and typical MVC structure without frameworks.
A frontend-only hotel booking landing page built for learning and instruction. It demonstrates a responsive single-page application (SPA) where users can browse luxury rooms, filter by guest capacity (adults/kids), pick check-in/check-out dates, and view detailed room information, ideal for understanding React patterns, Context API, routing, layout
Python-based TCP socket bot using Protocol Buffers, created for educational and networking research purposes.
A lightweight in-memory data store inspired by DragonflyDB, designed for educational purposes.
Local PHP/MySQL e-wallet application combined with a hands-on cybersecurity demo lab. Implements user/admin auth, balances, transfers, CSRF protection, session timeouts, login lockout, and hashing. Includes a toggleable Vulnerable/Secure lab to demonstrate XSS and session hijacking with real code and mitigations.
Software rasterizer with (mostly) readable source code.
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