It's kind of unclear to me, can I use shuttle without using shuttle.rs (the platform) to actually run it? Not that I am against paying for a service, but the i

It's kind of unclear to me, can I use shuttle without using shuttle.rs (the platform) to actually run it? Not that I am against paying for a service, but the idea of writing my app against with a specific library against a specific platform makes me uneasy. They have a github project but I think that is just the CLI + rust libs?