-Take care to do these steps as a **normal user** on Linux (not as superuser(aka root)), otherwise you’ll have to take care about the file permissions later on.
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-The **git://** protocol uses port **9418**, which may be a problem if you’re behind a **strict firewall**. You may instead use the clone url http://git.xonotic.org/xonotic/xonotic.git (however, using the git protocol directly is preferred for performance reasons).
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-After that, you have a working checkout of the repository. The game can be compiled and run with the following commands: