slax how to set a user non root

hello i dont know if my post is in a good forum slax is based debian so i post here
slax is a very nice and lightweight distribution but the site is not well documented

i have seen very often this question in the search engine because i have searched the answer a long time
slax starts with root it is a bit painfull if you use the key with several users to keep your datas in navigating on web
so i have found a simple way to start with another user
just change the .xinitrc of root

su - myuser --login -c /usr/bin/startflusbox

copy the .fluxbox directory in your user
i have done a small script to change this file
http://jeanmichel.gens.free.fr/scripts/change