I would love to see an option to allow radiation to damage buildings and vehicles. Currently I used your wonderful mod to construct my first nuclear plant in factorio. A 4 core, 400MW plant on a small island away from my main base. Then for fun, I turned off the cooling pumps and let it go critical! I've scaled up the fallout lifespan and how long a ruined reactor will release fallout because I watched the HBO Chernobyl series and I wanted my meltdowns to feel dreadful. However I was underwhelmed by the effects of the meltdown. I turned off the pumps to reactor 'A' and let it melt down with the non atomic settings. The reactor was destroyed and replaced with a ruin, however not even the water pumps that were directly connected to the reactor were damaged. Non of the other 3 reactors took any damage and without the power output of 'A' they all cooled very rapidly and had no real chance of melting down. Also, all that radiation effect and fallout I cranked up had 0 effect on my base when it blew over which made the whole thing feel more like a nuisance than a disaster to me.
I would love to see an option that would let the radiation effect damage buildings and vehicles. I base my argument for why this would be realistic on the part in Chernobyl where they couldn't use the lunar robots on the roof without lead shielding and they lost the radiation resistant robot on Masha because of the radiation. So for game play's sake, lets just say the rag tag equip that we are making on this planet isn't shielded and let radiation damage it. Heck, we can't even mine lead.
I would be happy to create a pull request for this if you accept the idea, but it looks like your github is WAY out of date. Otherwise I suppose I could try making a mod for this separately that would tie into the radiation force you have created. I'm not sure if that is even possible, haven't done a lot of factorio modding yet.