Where did you write your first fanfic?

(Sorry if it’s the wrong flair. I was going to put discussion but it had “non question” behind it so I put this question instead)

I remember my first fanfic was written in a minecraft book(the in game book) never posted though. The first fic I ever posted was on fanfiction.net but I disliked the in interface so I migrated to tumblr then ao3.