Boss, hello!
First of all, I want to say thank you for the mod!
Now, I have a few questions about the technology tree layout.
Right now, all the technologies are arranged in a single row and unlock one after another (although for some reason you can research the last tier right away without researching the previous one).
It turns out that the prerequisite is "Microelectronics II," and then all the rest should unlock, but they are all available at once.
Moreover, essentially all three technologies unlock sequentially, which kind of removes any sense of progression — you could say it's the same as if there were just one technology that unlocked all conveyor tiers at once.
If you asked me where I'd place these technologies to give the player a sense of progression, I'd answer like this:
Tie "Conveyors IV" to "Microelectronics I."
Tie "Conveyors V" to "Microelectronics II" and "Conveyors IV."
Tie "Conveyors VI" to "Electronics IV" and "Conveyors V."
More details in the screenshot.
And the same goes for thermal channels — they are available right from the start of the game, which completely removes any sense of progression.
And as for thermal channels, they could simply be added to the existing conveyor technologies at the corresponding tiers. Tier 2 thermal channels could go with "Conveyors II," and tier 3 thermal channels with "Conveyors III."
This way players will have a sense of progression and a smoother development of all conveyor-related technologies.