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Common building blocks used INTERNALLY by MonoMod and Harmony which can be used to build your own libraries, f.e. RuntimeDetour's platform abstraction and Utils' DynamicMethodDefinition. For code that is ready to use reliably, use MonoMod.Utils.

Utilities and smaller MonoMod "components" (f.e. ModInterop, DynDll, DynData). Can be used for your own mods. Required by all other MonoMod components.

Flexible and easily extensible runtime detouring library. Wrap, replace and manipulate (Mono.Cecil) methods at runtime.

General purpose .NET assembly modding "basework". This package contains the core IL patcher and relinker.

Auto-generate hook helper .dlls, hook arbitrary methods via events: On.Namespace.Type.Method += YourHandlerHere;