Well I've got a channel for archiving sheets with basic character info but other then that was mostly going to go free form on the discord side of things with a harder coded mush later down the line.
I was honestly going to use FS3, for when I finally get the mush side of things up and running, (even though Farraday recommends against it for any sort of magic system) just because I think it works nice with bending as a martial art more then a traditional magic.
I'm going to be adding code and whatnot as the playerbase at large decides it's needed more then anything really. I want to see what people want at large.
A lot of the discord rp I've seen is on the shorter form side ranging from a few sentences to one or maybe two paragraphs. I've seen longer form rp in it but that's a bit more rare to see.
As I said this is starting as a discord with hopes of being a mush down the line once I work things out with hosting which base system to use ect ect. Discord is mostly so we can get RP going and get people along for the ride.