Is it possible to generate custom music discs via config?

[OpenBagTwo]

If Fabric datagen providers can automatically generate item models, textures, etc. for placeholder tracks (see: #29), then it should be possible to leverage that functionality for all music discs. Does that mean that custom music discs could be generated using assets placed in the config folder? If so, would one be able to swap tracks in and out as easily as swapping resource packs? And furthermore, would it be possible to integrate ffmpeg directly into the FoxNap jar so that users could just drop in a bunch of music discs and let the mod handle the rest?

[OpenBagTwo]

Preliminary findings:

Does that mean that custom music discs could be generated using assets placed in the config folder?

Yes. While it's unclear whether any of the built-in resource managers can look outside of assets/data, one can always read in data from FabricLoader.getInstance().getConfigDir() and munge it as needed into in-memory JSONs for model providers, etc.

If so, would one be able to swap tracks in and out as easily as swapping resource packs?

I think this could be accomplished with reload listeners? I believe that down this route lies ModMenu-based config editing.

[OpenBagTwo]

Minecraft 1.21 is now completely data-driven. As such, changing any aspects of the music discs is just a simple /reload away.