The program is checking the .wbfs extension before it takes the game in the gamelist. So txt files shouldn't be an issue.
Games on the sd card wbfs folder should arrive there as well.
Modmii uses usb/nands/nand1 as location for it's nand. You can perfectly cange the nand1 into wathever you like once the nand is working.
Just delete the nandcfg.bin file so that the nands folder is rescanned for available nands.
The one important thing is to have your nands folders in a subfolder of the nands folder.
@lucor001
As neek2o is using the usb drive for it's nand emulation, no homebrew can directly access that drive anymore. With some minor changes,
homebrew can access the usb drive again using the uneek_usb_fs system that reroutes usb calls to the isfs filing system.
The problem with HBC and homebrew filter is that those programs are closed source. So, we can't add uneek usb support to them,
and if their developpers refuse to add it themselfs, things will stay as they are.
I hope I could convince stfour to add it to postloader. If so, you will have a program again that loads homebrew from the usb disc.
Be aware that these homebrews need some changes as well for usb support. So your favorite emulator won't be able anymore to load
it's roms from uneek. There is a fix, but it will take some time.