I followed that guide for everything except emuMMC. For that I followed this guide. So basically, once you've injected the payload and launched Hekate that's when you do your sysMMC dump and emuMMC creation, then continue as normal and do everything on emuMMC. It's suggested to delete all your saved wi-fi connections and put it into total Airplane mode before you do your sysMMC backup and emuMMC creation so that when you launch emuMMC there are no wi-fi settings saved and it's already in airplane mode. Then you can just re-enable it when you launch in sysMMC. Just so there's no chance of emuMMC accidentally get connected anywhere after you've launched it.
Thanks. my guess is that for multiple CFWs on the same system, you would need multiple emuNAND partitions, correct? i am hoping to get both L4T and a normal CFW running. and on the note of a normal CFW looking at both atmosphere and kosmos from the guide, they look the same but kosmos just looks like a better choice, is this the case?