Yeah it might be better to standardize on a common language (I would probably choose Lua) for building the tasks, both for the reason you cite and to make it ea

Yeah it might be better to standardize on a common language (I would probably choose Lua) for building the tasks, both for the reason you cite and to make it easier to share and reuse shared functionality. But it would just be a convention -- You could still build it in any language or integrate it with anything without having Lua forced on you.