I feel like the installation documentation is a bit short, though. As such I have a question I was not able to find the answer to:
What is needed to run ckeditor?
Sure, we get this directory with a bunch of files and I presume that the ones starting with an underscore are not supposed to go on the server (source and samples, makes sense). But what is really needed? More specifically, do we need the php files included to run CKEditor? It seems to be pretty self-contained so I'm really not sure.