Category:Skins which require code modification
Skins in this category do not "work out of the box". They may be specifically built for certain sites, without the expectation of customization. They may also fork existing skins, without renaming key internals e.g. skin key, causing incompatibility problems when used with other skins.
To use them on your own wiki, you will need to make modifications to the codebase, potentially forking it and maintaining it yourself.