Experimental arbitrary directory dotfiles install + re-added simplified phoenix wrapper script + updated readme with these changes

sync.sh

@@ -4,10 +4,7 @@
 # with configuration files for nixos system
 # and home-manager
 
-# Rebuild system
-sudo nixos-rebuild switch --flake ~/.dotfiles#system;
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 
-# Install and build home-manager configuration
-home-manager switch --flake ~/.dotfiles#user;
-
-~/.dotfiles/sync-posthook.sh
+$SCRIPT_DIR/sync-system.sh
+$SCRIPT_DIR/sync-user.sh