Open source. Open possibilities.

PromiseLink is an AI-driven personal business relationship management assistant focused on ensuring data sovereignty through local storage and implementing closed-loop management from event entry to promise tracking.

Local-first, auditable AI-assisted job-search workbench: JD analysis, application tracking and resume workflows with anti-fabrication safeguards, plus interview and offer pipeline. Markdown and CSV files, BYOK AI CLI, privacy-first.

Posting is a terminal-based HTTP client in the spirit of Postman and Insomnia. It stores requests as plain YAML files, works over SSH, and supports environments, autocompletion, tree-sitter highlighting, Vim keys, custom themes, Python hooks and cURL/Postman/OpenAPI import.

A curated list of programming tutorials for learning by building real applications from scratch, organized by programming language and covering compilers, kernels, games, web and mobile apps.

A large open-source collection of 2624 DevOps and SRE interview questions and hands-on exercises spanning Linux, Kubernetes, Terraform, AWS, Azure, GCP, Docker, Ansible, CI/CD, networking, databases, observability, and more.

A Python tool that scrapes the i2iFunding P2P lending marketplace every few minutes, scores loans by yield and credit, sends Telegram/ntfy alerts, and serves a static GitHub Pages dashboard backed by committed JSON files. An optional, safe-gated auto-investor can place real money.

PDFMathTranslate is an open-source tool for translating scientific PDF documents while preserving their original layout, including formulas, charts, tables of contents, and annotations. It supports multiple translation services and offers CLI, GUI, Docker, and Zotero integration.

HelloGitHub is a Chinese platform dedicated to discovering and recommending open-source projects, maintained by 521xueweihan. It publishes monthly journals featuring interesting beginner-friendly projects, open-source books, practical projects, and enterprise-level projects to help users quickly experience the charm of open source.

Licitarium is a Windows program that mirrors PNCP data offline: tenders, contracts, price registrations, PCA plans, and unit prices in a searchable SQLite database, with automated PCA drafting and eight printed reports.

VeighNa (VeighNa Studio) is an open-source Python-based quantitative trading framework with event-driven engine, supporting domestic/international market interfaces (CTP, IB, etc.) and modules for CTA strategies, algorithm trading, risk management, and data services. The 4.0 version introduces vnpy.alpha module for AI-powered multi-factor machine learning strategy development.

Odoo is a suite of web-based open source business apps, including CRM, website builder, eCommerce, inventory, project management, accounting, POS, HR, marketing, and manufacturing. These apps can be used standalone or integrated as a full-featured open source ERP.

Mouser is a lightweight, open-source tool that locally remaps Logitech HID++ mice without cloud or account. Supports MX Master and Anywhere series with per-app profiles, DPI control, SmartShift, and cross-platform UI.

A keyboard-driven, vim-like web browser based on Python and Qt with a minimal GUI.

Code随想录 (LeetCode-Master) is a structured LeetCode study plan covering data structures and algorithms, with 200+ curated problems, detailed图文 solutions, and video lectures, supporting C++、Java、Python and other languages.

Self-hosted Telegram bot that turns an Obsidian vault into a personal AI agent: capture text, voice, photos and links, then file them as markdown, kanban tasks and a finance ledger. Modules (planning, knowledge, finance) are fail-closed and can be disabled entirely.

Free index of Chinese programming books covering operating systems, AI, Web, algorithms, and various programming languages, with community contributions.

A community-maintained DevOps reference guide covering Docker, Kubernetes, Prometheus, Git, Ansible, Terraform, Jenkins, GitLab CI, GitHub Actions, CircleCI, Travis CI, Puppet, Chef, Linux, and networking, with concepts, commands, tutorials, interview questions, and curated learning links.

grubForge is a TUI application for Linux that simplifies GRUB bootloader management and customization. It offers a safe, clear, and user-friendly interface for configuring settings, managing boot entries, applying themes, and creating backups, all without needing root privileges for the main application.

WeasyPrint is a Python-based HTML/CSS to PDF rendering engine that helps developers generate professional documents like reports, invoices, and tickets from web markup.

Zotero CLI is an English-language command-line tool for managing Zotero libraries and supporting rigorous systematic literature reviews. It combines Zotero item and collection operations, multi-source import, interactive screening, audit trails, citation snowballing, data extraction, PRISMA reporting, and optional local RAG/LLM-backed semantic search.