Well, here's what I'm doing.
1. Extracting from 1A000-1BB8F(maybe inaccurate, not entirely sure right now, also only for 7.x to 9.4) in the GW launcher.
2. Combining a bin file with the data above, and a payload.bin from a Homebrew into another bin file, using a hex editor and placing the data above on top, and the payload.bin on the bottom(the bytes of the two
)
3. Going to 1A000 in the GW launcher, and pasting WITH OVERWRITE(important, without this it will just crash back to home menu!), then copying this new Launcher.dat to the sd card, and loading go.gateway.com .
Does anyone see any faults in this process?