I've been building custom scripts for Joomla for years. Now I'd like to customize the installation to use a tarball instead of zip file because I get corrupted installs using zip. All the install.php files I can find from Joomla and other installations are encrypted using ionCube and the sample.zip file linked in the docs won't unzip. Gives and error message that the file or folder doesn't exist when you try to unzip it. How do I get the source to a typical install.php for a custom package? Thank you.