[Timja]

    GoToSocial: 6849 files plus dependencies

    Pleroma: 2289 files plus dependencies

I might miss my target of 2 files. But I will surely not get the filecount go up to these extremes :)

[vedranm]

How about https://github.com/landrok/activitypub ? It's not two files, but it's PHP at least.

[Timja]

Nice!

283 files

Still crazy many, but I will look a into it in case https://microblog.pub turns out to be not what I am looking for.