nostr:npub1ha2lruw3206t0vvrkum95nwc5vqj5rx4nyssfn3j4mjfwur3x8nsymk5hs The Cargo.toml will not necessarily tell you about that if the feature "full" in Tokio was used. One needs to check where the runtime is spawned (noramally at the main function). The multithreaded version is the default. Otherwise you would see this explicit annotation:

#[tokio::main(flavor = "current_thread")]

I am sorry if I am missing something, but I don't get how the runtime that you normally start yourself (for example in Axum) is hidden.