I see. It's a pity though. There are things I really like about each mod.
DIY let's you be more specific and involved in the terraforming process, and it can take a while to complete because of the RNG aspect to it, but the progression is one-directional (they can only "improve") which is more "realistic" but cuts down on the options available for planet types to choose. And it has the ships to create planets and stars, which I wish were their own mini-mod, but understand why they are simply included into DIY.
Meanwhile TASC is more varied on the types of planets you can create (less realistic but more flexible options), has more features overall (except those ships), more customizable thanks to the settings file but the progression seems much more passive (as far as I can tell anyway, have not tried it yet).
There were a few other things I wanted to ask about. I tried to compile them in one post so I don't end up writing one for each question that pops in my head:
First would be Arcology worlds. What are their characteristics? Why would I want to create one? Advantages and disadvantages?
The other would be about certain industries that I found while reading through the settings file. In particular Hydroponics industry, Wilflife (I'm guessing it's a typo and you meant Wildlife) Exploitation industry and Spice Harvesting industry. What do they do? And why are they disabled by default? I can't tell at all to be honest.