Instructions
List of missing features
Instant Commons #InstantCommons is a feature of MediaWiki to allow the usage of any uploaded media file from the Wikimedia Commons in any MediaWiki installation world-wide.
EnableUploads #Allows to upload files to MediaWiki
AllowExternalImages #Whether to allow inline images hosted on external websites, sometimes called inline linking.
List of missing extensions
VisualEditor #The VisualEditor extension allows for editing pages as rich content. There is also a project of the same name aiming to create a reliable rich-text editor for the Web and for MediaWiki.
LinkedWiki #The LinkedWiki extension lets you reuse Linked Data in your wiki. You can get data from Wikidata or another source directly with a SPARQL query. This extension also provides Lua functions for building your modules so that you can write your data in your RDF database.