Making profiles importable / exportable as simple TOML files would open the way for application-specific profiles, one natural example is the configuration recommended for Navidrome in https://www.navidrome.org/docs/usage/library/tagging/

For this to be useful, tagging or filenaming scripts have to be embedded in the same file, the file has to be human-readable, and easy to share (on forums, by email, etc.).