no its not from a cart. Is it possible to play it on a emulator or do I have to unencrypt it for that aswell?
https://gbatemp.net/threads/files-on-sd-card-not-loading-on-3ds.524684/
Apparently according to this the movable.sed is formatted in a predictable way and as a result is reverse engineerable to get what it used to be. Thought it was cool will let you know if I can get it to work