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BillionMail provides a free, open-source solution for managing email communications, including mail servers, newsletters, and email marketing. It is designed to be user-friendly and self-hosted, allowing users to avoid monthly fees while maintaining control over their email services.

Blinko is an open-source personal note-taking tool that prioritizes user privacy, allowing individuals to securely store their notes and memos. Built with TypeScript, it offers a user-friendly experience for managing personal information without relying on third-party services.

A privacy-focused captcha solution designed for websites, providing a simple way to prevent automated abuse while ensuring a user-friendly experience. It helps protect against bots and spam without compromising user privacy.

一个 Cloudflare Tunnel Agent 工作流 skill，支持将本地服务临时发布到公网，或通过固定域名进行公网映射。 | An agent workflow skill that exposes local services to the public internet via Cloudflare Tunnel, with temporary preview URLs or fixed custom domains.

Cloudreve is a self-hosted system that allows users to manage and share files easily, supporting various storage providers. It simplifies file organization and access, making it a practical solution for personal or collaborative use.

CrewMeld — Enterprise AI Digital Workforce Platform. Manage AI employees like real team members. Visual SOP orchestration, 13 LLM providers (including China-native models), 8+ messaging channels(WeCom/DingTalk/Feishu/Telegram), knowledge base with RAG, and full private deployment support. Built with Next.js, React, TypeScript & Bun.