| addon | Optional addons/plugins |
| boot.php | Each process uses this to boot the application structure |
| doc | Help files |
| images | required images |
| include | The ‘model’ in MVC - (back-end functions), also contains PHP ‘executables’ for background processing |
| index.php | The front-end controller for web access |
| install | Installation and upgrade files and DB schema |
| library | Third-party modules (must be licence-compatible) |
| mod | Control modules based on URL path names (e.g. http://sitename/foo loads mod/foo.php) |
| mod/site/ | Site-specific mod overrides that are excluded from Git |
| util | Translation tools, main database for English strings and other various utilities |
| version.inc | contains the current version (which is automatically updated via cron for the main repository and distributed via git) |
| view | Theme and language files |
| view/(css,js,img,php,tpl) | Standard theme files |
| view/(en,it,es ...) | Language strings and resources |
| view/theme/ | Single named themes that contain (css,js,img,php,tpl) overrides |