Well I do have a version of wood somewhere that just does that. It is not able to launch anything (neither from the 3ds sd or from the flashcard) but it can browse both and the copy works fine. Let's me found it, I will push it to github. But I warn you : do whatever you want with it I will not maintain it. Wood is a mess even only to compiles it.
You're a saint!
Will there be a compiled version, or must I learn how to set up a build environment?