I created a Custom build using the UI: https://ckeditor.com/ckeditor-5/online-builder/ After downloading the zip, how can I add it as a dependency to my Angular project? I followed this tutorial: https://ckeditor.com/docs/ckeditor5/latest/builds/guides/development/custom-builds.html I have the build ready, so every dependency is installed. How can i use it in my Angular project? First I tried to add the .tgz as a dependency: npm install ./ck5editor.tgz but no use. Continue reading...