Keel as a Rust front end: #[keel::wrap] plus a reqwest-middleware adapter, routing calls through the keel-core Engine chain (cache/rate/breaker/timeout/retry) from one `keel.toml`. No import hook (Rust has none to hang off of) — call `keel::init()` once from your own `main`. Published as `keelrun` (plain `keel` is taken on crates.io); add it as `cargo add keelrun --rename keel` so `#[keel::wrap]` resolves — see README.md.