Hi, really nice looking mod!
Bug: There is a bug with the assembling machine 4 technology. It's missing the proper localization key. Apparently something about using numbers as suffixes may be the cause of why it's not working, though not sure.
Suggestion: Consider adding support for PlanetsLib: Tiers. https://mods.factorio.com/mod/PlanetsLibTiers
Would be nice for knowing where this planet is difficulty wise. A value of 2.8 seems like a nice tier, which puts it after Vulcanus!