Any restriction on using the edge of a ribbon map to collect water for steam engines?

Will it be possible for mod developers to introduce their own difficulty types other than "recipe" and "technology"? For example: If/when Angel's refining and petrochem support difficulty levels, I'd like to be able to select that I want to play refining on complex but petrochem ...

Angel's infinite coal doesn't produce coal dust with hard crafting enabled. I think the following code should be added to angel_ores_hardcrafting.lua: if data.raw["resource"]["infinite-coal"] then data.raw["resource"]["infinite-coal"].minable.result = nil data...