# GitHub {bdg-primary}`External Service` [GitHub](https://github.com/) is a web-based platform that provides hosting for software development and version control using [Git](overview.md#git). It is widely used by developers, software companies, and open-source communities to manage and share their code. GitHub also offers a variety of tools and features for collaboration, such as pull requests, issues, and wikis, making it a popular platform for team-based software development. Beyond code, GitHub can also be used for non-technical projects, such as writing and research, as it allows for easy sharing and collaboration on documents and files. Overall, GitHub is a powerful tool for communities and individuals to share and work on projects together. You can find the CRC 1261 GitLab group at: [https://github.com/CRC1261/](https://github.com/CRC1261/) :::{note} To allow external contributions, increase visibility and improve discoverability, [GitLab RZ CAU](./cau_gitlab.md) repositories can be mirrored (upstreamed) to a public GitHub repository. This allows for better exposure and can enhance the reuse of the publication. ::: ## Access :::{note} {octicon}`key;1em;sd-text-info` Access is only permitted for members of CRC1261 and must be requested. {octicon}`person;1em;sd-text-info` To get write access, an (external) user account must be set up on GitHub. :::