The article introduces an experiment that aims to propose an adaptation of social practices of fanfiction in schools. After identifying the characteristics of these practices that form real literate spaces, we present their convergences with the orientations that the didactics of literature promote, in particular the development of a reading subject, the constitution of communities of readers in the classroom or the accompaniment of a creative writing subject. The article then describes the design of a fanfiction platform, carried out as part of collaborative research, and analyzes how each space of fanfiction allows to develop specific literary skills.