Balance mostly. I made most recipes a lot cheaper and faster to craft even compared to base ERP to make everything more accessible. Also I rearranged the tech tree a bit and removed all but one of the infinite techs because they became obsolete or got stronger alternatives with AB.
Lastly I changed Asteroid Mining so that you can choose which Angels ore you get and the Space Fabricator only gives you Angels ores to preserve the gameplay around sorting and refining those ores.
