I got an error upon the initial prototype creation of your mod:

{error = "Productivity/lib.lua:84: attempt to index field 'heat-pipes' (a nil value)", recipe = {enabled = false, energy_required = 15, ingredients = {{amount = 5, name = "advanced-circuit", type = "item"}, {amount = 5, name = "electronic-circuit", type = "item"}}, name = "speed-module", results = {{amount = 1, name = "speed-module", type = "item"}}, type = "recipe"}}
stack traceback:
[C]: in function 'error'
Productivity/lib.lua:123: in function 'enable_total_productivity'
Productivity/data-final-fixes.lua:2: in main chunk

This is weird, I tested in Factorio 2 just now, it works fine... The only suspicion I have, you use Space Age, and the devs may have made some strange prototype changes for it, while for now I unfortunately cannot acquire the DLC to test with it.

I don't have Space Age. I can't use Space Age. I would love for a standalone mod for quality but it only has been the first day.

This error also applies to me without running any mods... maybe I need to verify game integrity...

Ohh, I got it, made a typo, and had "prod for generators" option off. I published mod v2.0.1, please have a try!

It seems the productivity isn't enabled for most of the new space items (space platform, starter pack, cargo bay).
Would also love to see an option to allow productivity in beacons, and to remove the new hard cap of +300% on productivity to make it unlimited again.
Yes that would be overpowered but i'd love to try some setups that really stretch all the new space age optimizations for fast crafting.