Heyo. Thing I'm curious about: is it possible to add characters to Soku? I know MUGEN is out there for people who want every Touhou in the world, but the Soku system is very nice, and it'd be cool to have a set of "official unofficial" characters that people generally agree are balanced who didn't make it into the official version of the game.
Could someone enlighten me as to the obstacles here? Soku has already been opened up for patching; is it substantially difficult, after that point, to add in new characters? Is it just that no one has done it?