I see that https://www.pantsbuild.org/docs/welcome-to-pants#which-languages-and-frameworks-does-pants-support mentions Avro, but that’s the only mention in the docs, and the list of targets doesn’t have anything that sounds like avro. Is this just a leftover in the docs, or is there really something hidden in the source?

It is properly supported, just apparently not documented

Yeah, not documented because we haven't implemented the polish we like to have for codegen. I think the main thing is it's not hooked up to dependency inference But it's

pants.backend.experimental.codegen.avro.java

in

backend_packages