AdvancementInfo is currently around 1 MB mainly because it bundles Cloth Config.

However, Cloth Config gets updates (= bugfixes, new features...) faster than AdvancementInfo, leading to duplicates or separate jar necessity in modpacks and people's instances alike.

Therefore, I suggest making Cloth Config a dependency instead of a bundled jar, or even an optional dependency if json reading-writing is independent from it (which is the case in some mods).