Onebox for Rust Playground links

Folks often post links to Rust Playground, e.g.:

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=8d4e99b8a7009d1bfc5a9c8744d21155

But you have to click through to see the code they're talking about. Discourse has a feature called "Onebox" that can inline a rich summary for links. For instance there's a Onebox implemented for Gists:

It looks like the Onebox repo is at GitHub - discourse/onebox: A gem for turning URLs into website previews. Would folks here be interested in having a Onebox that would expand Rust Playground links the same way the gist link above is expanded?

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