Capturing, distributing patches. Possible?

Hello ladies and gentlemen,

It would seem that times and tech have changed once again. In the past one could simply download a patch from a developer’s website or third party now it is only through Steam.

A recent example is the latest games in the X series. X3 Terran Conflict has downloadable patches X3 Albion Prelude does not. This is a problem that I intend to solve. Having read previous posts (ie the God thread for Steam) and tutorials, I did not find anything pertaining to patches.

Fret, I am not helpless. I simply want to know if someone else has a working method. My idea: