Coexist with sodium and make it even faster.

cannot be done. this replaces the renderer with vulkan, a more modern and faster renderer than opengl. sodium replaces it with a custom opengl renderer. opengl and vulkan cannot coexist.

Actually, it is kind of half possible, sodium expose a way to disable parts of it's code/mixins, so it would be possible to disable the parts of Sodium not compatible with VulkanMod.

Sure it will make sodium not 100% because some part of sodium will be disabled, but it is possible.

I was told that iris does some vulkan stuff, so you might just get away with using that