Here is a small post to show you a screenshot of the unified tech tree in all its messy beauty :)
This document is only one part of the data, the second part is an ODS file that stores all the technoscience's data.
It will not be filled up before the release of the alpha 10, but as I said in the previous post only a small part will be effectively in the game. But yes it's some work already.
I just push the design work because the technosciences are spread into two other ODG files (souvenirs from the previous failed iterations).