Hello, I've gotten this error when trying to load this library as part of a dependency for Metal and Stars:
Failed to load mods: Error in assignID: item-subgroup with name 'ringworld-processes' does not exist.

Source: gold-ore (item).

Mods to be disabled:
• common-prototypes (0.0.1)

Please disregard, I'd forgotten that I disabled Metal and Stars to fix the snapper issue with Armored Biters.

No that is DEFINITIVELY an issue.
This mod does not list Metal & Stars as a dependency.

So this is an actual issue until the dev update the dependencies.

The issue is the mod depends on Armored Biters having snapper spawners enabled, which is disabled by default. So the game fails to load if you forget to enable them before enabling the mods.

Still dumb.

The Metal & Stars devs have been trying to promote Common prototypes as a solution to mod interoperability. This specific issue is the biggest reason why they haven't been successful. It needs to be fixed in order for Common prototypes to actually become common.

I'll look at this, good catch

I merged your PR, I've been pretty busy, and I appreciate you taking the time to make this fix.