Remove all pfSense_MODULE and pfSense_BUILDER_BINARIES definitions, whatever was the reason they were added, it was never finished and it's not being used
Set language early on a common place included everywhere. This fix some tar warnings 'Failed to set locale'
Stop creating /var/etc/cfdevice, it's not being used
Try to use default timezone from globals.inc when possible. Stop setting timezone on pkg_mgr_installed.php
Move main pfSense content to src/