We dont want to ship the API with the mod itself but also dont want to hard depent on it. If no RF Mods are present, we should not load/register any RF based conversion blocks.

This is probably not easily doable since most RF mods bundle the API with the mod. In the past there was the cofh lib which we could depent on, but now this is quiet a bit harder if not impossible. For now we will bundle the RF api and provide a configuration option to disable RF support.