As the title says, it'd be cool if gunpowder could ignite kindling. The burning behaviours for kindling are handled by IKindling and it looks like the implementation would be a fairly straightforward matter of setting a property on the blockstate.

Sure thing. I think I have a tag for it but if there's an interface I'll add direct compat with it, providing the mod is for 1.18. I dont really plan to update 1.16 that much anymore