Why do you think it is complex? Have you read the tutorial on Github, or simply tried to click the "Pull request" button on your Github repository?
Well, . . ., yes, I read this tutorial.
The point is : I have no pull request button anywhere to click on
I probably don't have the permission, or the tutorial is outdates (or I'm really dumb).
However, back to the subject, I have no clue who's the last maintener of DSFML2 but I would be happy to help. Is it robogymnast ? Or trass3r ?
Anyway, if nobody is maintaining this piece of code, maybe I could.