IV-SDK is a project with the goal of making IV modding easier, and to finally let people ditch the decade-old ScriptHook.
While there is support for calling natives, there are also headers for many of the game's classes, structs and functions, allowing a more direct approach, and easily make mods that previously required tons of redundant work to do.
I have put almost everything I've learned by making ZMenu and ZPatch into this project, all into an easy to use "SDK".
Currently supports the EFIGS versions of 1.0.7.0 and 1.0.8.0, support for non-EFIGS could be added eventually, but any other versions such as 1.0.4.0 or anything newer would be near-impossible as there are major differences in function parameters, types and classes.