So, the PC version of RetroArch has support for Retro Achievements. Is there any possible way to port that particular part to the 3DS version? I prefer to play these on my 3DS instead of my laptop, and it would be nice to still get the Achievements for the different games that I play.
EDIT: By "is it possible", I'm mainly asking if there's a way for a homebrew app to log in to a website and exchange information, without opening the Internet Browser or anything like that, just doing everything in the background while the user is playing a game.