github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

菜鸟教程(www.cainiaojc.com)是编程技术的基础教程,是初学者入门,技术人员不可多得的参考教程和手册,包含大量关于如何使用html、css、javascript、sql、python、php、bootstrap、java、xml等的在线实例。

the haskell purely functional programming language home page.

raygun gives you a window into how users are really experiencing your software applications. detect, diagnose and resolve issues that are affecting end users.

f-droid is an installable catalogue of foss (free and open source software) applications for the android platform. the client makes it easy to browse, install, and keep track of updates on your device.