I've been looking into modding recently, and I've spent like 5 hours just to find out how hardcoded quality is. Concluding for myself that I can't do anything without new prototypes I gave up.

However it seems like you've done something incredible with prototypes. Considering how easy it is modifying existing prototypes, I think this mod can serve as a basis for others. (e.g. Anyone using this just adds a dependency to their mod, and find your prototypes starting with "QualityEffects-" and go wild)

(I think you could easily make a library mod that does conversions for all buildable entities)

My request is for you to consider making one with mining machines with similar effects to this one, and perhaps a +30% mining speed increase per quality level.

(Otherwise, for personal usage I think I can make it work like I want it to)

Thanks!
I would consider expanding this mod (or creating a few more) to affect more entities
Also, the idea of creating more prototypes for qualities is not originally mine. I took it from https://mods.factorio.com/mod/more-quality-uses
I should probably say so in the description

Thanks for pointing me there! I might just make it myself, and if it's not uploaded by anyone I'll upload it myself.
The mod portal could really use some advanced search features

Also, hope you don't mind if I'll use your version of the code. I'll credit you in all the places I can even inside the code, if you have a problem with that, I'll take it down of course.

https://mods.factorio.com/mod/quality-miners