mosparo
The modern spam protection tool. It replaces other captcha methods with a simple and easy to use spam protection solution. (Source Code) MIT PHP
Enigma 1/2 BBSEnigma 1/2 is a modern, multi-platform BBS engine with unlimited “callers” and legacy DOS door game support. (Source Code) BSD-2-Clause Shell/Docker/Nodejs
数据统计
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Lago
Metering and usage-based billing. (Source Code) AGPL-3.0 Docker
Prosody IM
Feature-rich and easy to configure XMPP server. (Source Code) MIT Lua
轻竹办公
轻竹办公（AI制作PPT）AI工具，官网：https://qingzhu.cn
HTMLy
Databaseless PHP blogging platform. A flat-file CMS that allows you to create a fast, secure, and powerful website or blog in seconds. (Demo, Source Code) GPL-2.0 PHP
千笔AI论文
提供免费万字学术论文生成服务，支持AI内容降重优化，附赠专属兑换码提升论文质量，适用于学术研究场景的内容合规处理。
OpenProject
Manage your projects, tasks and goals. Collaborate via work packages and link them to your pull requests on Github. (Source Code) GPL-3.0 Ruby/deb/Docker
PostHog
Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap, HotJar, Optimizely). (Source Code) MIT Python