For those who didn't know, replit has the ability to directly interface with the linux system on which all this runs. Using this functionality, one can upload any library to the repl, and run said repl in the context of the library, as demonstrated here.
You can make a blank repl which uses a makefile here
this is a really bad demonstration ik
Just try to picture the implications of this (SFML is not an officially supported library on repl.it)