[aur-general] Can it be done?

[Collin]

NOTE: This is my first actual fresh pkgbuild. What a way to start!

I've been looking into creating a package for FreePBX. However, I'm now 
wondering if it can be done with the pkgbuild system. The problem is 
that FreePBX wants a # of changes to a variety of packages (namely, 
mysql, apache, and php) and it wants to check to see that those changes 
are done before it installs. For instance, it wants mysql to already 
have a user account and PW for it as well as tables setup, etc. It seems 
like it might be difficult to make a package first add a bunch of system 
changes and then install the files. Is this possible to do?

I'm thinking that my only hope would be to patch the FreePBX installer 
so that it no longer checks and instead make all of the necessary 
changes in an .install file which would run after the package is 
installed, correct?

It would have been helpful if there was much of any documentation on how 
to go about building packages. But, I can't seem to find much of 
anything concrete.