SpaceCore is a framework mod used by some of my other mods.

Json Assets lets content packs add custom content to the game. It currently supports crafting recipes, crops (including giant crops), fruit trees, big craftables, hats, weapons, clothing, and boots.

Generic Mod Config Menu adds an in-game UI to edit other mods' config options. This only works for mods designed to support it.

Content Patcher Animations lets you animate textures in Content Patcher with its EditImage action.