Appendix The appendix contains some additional information that covers topics in more depth than what is already described in the main section. OS X help Working with Git Tower GRUNT install on OSX Npm install on OSX Creating a SSH Public Key on OSX Microsoft Windows help SSH and Git tools on Windows Cloning with SourceTree on Windows Troubleshooting for Windows Linux/Unix help Setting up TYPO3 manually under Linux Creating a SSH Public Key on Unix/Linux Information for editing this guide Coding Guidelines Commit Hooks Commit Message rules for TYPO3 CMS Composer Extension scanner How to deprecate classes, methods, arguments and hooks in the TYPO3 core PhpStorm: Setup TYPO3 Core contribution setup with DDEV Setting up TYPO3 manually Slack