I am currently toying around WindowMaker (GNUstep) and how it
handles its install prefixes for well, anything. I was already
using my ~/Applications custom home install prefix which is
quite literally a mutant of that of NeXT's and unix's way.

I'm also devising a way to go further with that, although
doing so with just the shell profile and environment variables
would end in a nasty, but somewhat working result.

>>>
PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
APP_PATH="$HOME/Apps"
APPS="antifetch.app"
for i in $APPS; do
export PATH=$PATH:$APP_PATH/$i
done
<<<