find source on github at https://github.com/examknow/CentralCheckUser/tree/master. Remember it is still in beta so if you see something that would improve it, you have my permission to change it.
Description
Event Timeline
After Speaking with JohnLewis, I have decided there is more work to be done prior to review. Users are always welcome to help though.
I'll be taking a more in-depth look at this extension in two days or so, but I did notice that there are a few typos in the extension.json file.
I'm going to try and spin up a test Mediawiki instance using the Miraheze config where possible and have a look soon
Currently, the extension still needs a lot of work. As it stands, it functions like the existing CheckUser extension (not globally), except it uses a different table in the database. However, it took me about an hour to figure out how to get it working at all. There are a number of edits that still need to be made where the code references the wrong DB tables and columns, as well as other problems.
I've decided to investigate an alternative method of doing this that can be done without creating more database tables, or at least, not duplicating the existing cu_changes table.
Boldly declining, no functional implementation of a GlobalCheckUser exists, and likely won't exist for some time.