I wonder if there is a scope for a "opt" / "extras" type level where libraries for stuff super commonly used, like JSON/YAML/ssl etc can be placed. It doesn't h

I wonder if there is a scope for a "opt" / "extras" type level where libraries for stuff super commonly used, like JSON/YAML/ssl etc can be placed. It doesn't have to cover everything the defacto third party libraries do (that will be too much and not practical), just including happy paths should be enough for most people to just include the meta package and get the most generally used features instead of including a ton of third-party libraries. My knowledge about Rust's library system isn't great so there are probably several gaps in my argument.