Hi!
Nice mod! I suppose it work greats with Krastorio 2 alone but with Space Exploration (SE), it doesn't work since SE overwrite the recipe. It still results in 16720 unit of steam produced per single DT-fuel cell. However, I know why it doesn't!

Normally, you did it right by doing your changes in data-final-fixes.lua but there's something missing to ensure your updates are really done at the very last step during mod loading. You need to include dependencies for Krastorio 2 and Space Exploration in your info.json. See here for more info :
https://wiki.factorio.com/Tutorial:Mod_structure#dependencies

Basically, it should look something like this:
"dependencies": [
"base >= 1.1",
"(?) space-exploration-postprocess",
"Krastorio2"],

Krastorio2 is a hard dependency (meaning your mod won't load without Krastorio2) while I've marked Space Exploration Postprocess as an hidden optional dependency to make sure your changes are effectively the final changes done.

Also, look at this for including settings for your mod:
https://wiki.factorio.com/Tutorial:Mod_settings

yo thank you so much, I will definitely look into this.

as for SE compatibility, I haven't played it so I didn't think about making sure it was compatible, I'll get that fixed for ya.

You're welcome! Just a quick follow-up, the mod works now with Space Exploration! The recipe does output 50k steam now!

less gooo