How would I go about building an independently-running CIA of my music edits as a temporary fix to the long load times? I know it's possible to rebuild custom music into a 1.1.4 update CIA (Found an example of that on a certain iso site), but I can't find out how to compile anything as an update CIA, since compiling it as a .3ds gives it the title ID of smash itself for some reason...
Doing something weird to "rsf files" is about as far as I got looking around the internet on this...
Feel free to PM me about it. I can link you a guide to it. The Custom music 1.1.4 update you found on that site is one I made.