I am deep in a development phase.
I will adress this issue immediately when this is over
for now: to remove a module (as an example I use here firefox.sb) do
1. cd to dir where firefox.sb is located
2. unload bundle form aufs overlay filessystem
bundle -d firefox.sb
3. rm firefox.sb
You could click on firefox.sb in spacefm file browser
it will start a helper program were you can unload firefox.sb
from aufs union. Then you could right click and choose "delete"
to remove it
Also could you specify how you boot with what parameters