OpenSpace uses Git submodules, which are not supported on all clients. Xcode on Mac, for example, does not, so beware.
- SourceTree A free and powerful Git client usable on both Windows and macOS
- GitKraken A free GUI for Windows, macOS, and Linux
- SmartGit Another GUI Git client which runs on Windows and Mac
- XCode does not support recursive cloning or git submodule commands. However, installing Xcode makes Git available on the Terminal, which supports the
Learning Git is a good, interactive webpage to learn the basics of using Git.