Problems with connecting the editor sl editor. What does @ckeditor mean?

Question

JavaScript

I connected the ckeditor editor, but I would also like to implement the loading of pictures, and preferably without cloud services. I’m not very good with English, but from the documentation I realized that I need to deliver the ckfinder package and also, in order for this to work, we need some kind of “bridge” that adapts the finder to the editor, and even the necessary lines of code are indicated in the documentation.
link to the page with installation instructions
https://ckeditor.com/docs/ckeditor5/latest/feature...
After installing the code from the page, the editor itself stops working for me. The cant, as I understand it, is in the import line, or rather in " @ckeditor" , with which the link to the imported file begins. In principle, this file lies quite calmly along the path 'editor / packeges / ...' and you can replace this construction with a dog with a path and add a file extension and everything will be connected, but in each included file there are the same imports and many start with that the same constructions with a dog - rewriting all of them is not very interesting and probably correct. I don’t understand js very well, maybe everything is simple here, but something doesn’t work out for me. Apparently this is a constant written somewhere, or something else where the path is registered, but I have a different file location, so nothing is connected with this construction. Please tell me how to fix this (where is the path that this construction describes, or how the files should be located to match this path), or detailed Russian instructions for installing CKfinder. Thanks in advance.
maybe there is something related to nodejs - I need to upload images through php