In /boot/config/go add:
# JE: add custom bashrc.
cp /boot/config/user/bash_profile /root/.bash_profile
Then
mkdir /boot/config/user and create /boot/config/user/bash_profile:
# console coloring for kool kids
PS1='\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
# if this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
PS1="\[\e]0;\u@\h: \w\a\]$PS1"
;;
*)
;;
esac
# impersonate a user
alias user="su -ls /bin/bash"
alias v="ls -lA"
export PATH="$PATH:/mnt/user/appdata/custom_binaries"
And create /mnt/user/appdata/custom_binaries then put whatever in there.