https://docs.contao.org/4.x/dev/guides/This is a collection of tutorials and best practices on working within and extending Contao. Adding Back End AssetsHow to add custom CSS or JavaScript to the back end. Back End RoutesCustom routes within the Contao back end. Coding StandardsCoding Standards that Contao follows. Fragment ControllersThe concept behind fragment controllers. Managing Data RecordsCreating a DCA to manage custom data records. Modify the Container at Compile TimeHow to make changes to the container at compile time in the Contao Managed Edition.Hugoenhttps://docs.contao.org/4.x/dev/guides/adding-back-end-assets/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/adding-back-end-assets/How to add custom CSS or JavaScript to the back end.https://docs.contao.org/4.x/dev/guides/back-end-routes/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/back-end-routes/Custom routes within the Contao back end.https://docs.contao.org/4.x/dev/guides/coding-standards/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/coding-standards/Coding Standards that Contao follows.https://docs.contao.org/4.x/dev/guides/fragment-controllers/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/fragment-controllers/The concept behind fragment controllers.https://docs.contao.org/4.x/dev/guides/dca/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/dca/Creating a DCA to manage custom data records.https://docs.contao.org/4.x/dev/guides/modify-container-at-compile-time/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/modify-container-at-compile-time/How to make changes to the container at compile time in the Contao Managed Edition.https://docs.contao.org/4.x/dev/guides/namespaces/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/namespaces/Recommendations for namespaces & class names.https://docs.contao.org/4.x/dev/guides/publishing-bundles/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/publishing-bundles/How to publish a bundle to be installed in Contao.https://docs.contao.org/4.x/dev/guides/using-content-elements/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/using-content-elements/This guide shows how to use Contao's content elements as child records for the records of your own table.https://docs.contao.org/4.x/dev/guides/first-bundle/Mon, 01 Jan 0001 00:00:00 +0000https://docs.contao.org/4.x/dev/guides/first-bundle/How to set up a Contao extension.