would it be possible to separate the gradual item productivity and machine quality?
getting small bonuses factory-wide over time feels good but getting free upgrades for machines feels like an exploit.
it doesn't apply to fluids like molten iron btw, so half of my foundries don't get any upgrades while the rest goes up to legendary for making plates

I'd love to be able to deactivate one of the 2 features with a startup setting, or separate mod/fork

Hey, already planning some more mod options, but an enable/disable option is a good idea, new release should be pushed in the next day or so

thank you for adding the option to disable the free quality upgrades. I changed the setting and started a new game but for some reason my stone furnaces still upgrade over time

hmm curious, i'll have a look

Edit: Pushed update that should fix it