In the near future, I'll need to do something likely very similar to what you did (albeit, probably on a smaller scale). Are there any technical details about this that you can share or perhaps just some pointers to relevant and/or helpful documentation?

(N.B.: I won't even be starting on this for probably a month or two so I haven't even begun to look into it. If there is documentation easily/readibly available via a Google search (i.e., I'll find 'em as soon as I Google for 'em) then just ignore my request. Thanks!)

There is a TPROXY mailing list where you can easily get questions answered by the community if not the original author of the patch.

This Python example sets up a transparent HTTP proxy which will show you the basic socket stuff you need to get going.

https://github.com/erijo/transparent-proxy/blob/master/READM...