right now i get the following error if i load this mod up alongside Nuclear Science

Failed to load mods: Error while loading technology prototype "fusion-reactor" (technology): Research ingredient "nuclear-science-pack" is registered twice in the technology
Modifications: Space Age › Nuclear Science

Fusion lab isn't listed on the error log, however if i disable it then the game loads up fine

Thanks for reporting. Fixed in 1.1.2.

(As to what happened, I had copied the research ingredients table by reference instead of by value from the fusion reactor leading to Nuclear Science ending up modifying it twice)