I've used go:generate to generate a set of structs based on an XSLT document. That said, since XML is fairly uncommon these days in popularity, the generator was a bit buggy still.

And I've used go:embed to include .sql files for database migrations and querying. I should really spend some time on this POC I made (sqlite, goose for migrations, and an implementation of temporal tables) and publish it as a demo.