Several Rust projects by the same author may be helpful.
https://github.com/joelparkerhenderson/demo-rust-axum
This project demonstrates Rust and the axum web framework. The project also shows tower for clients and servers, hyper for HTTP, tokio for asynchronous I/O, and Serde for serialization/deserialization.
https://github.com/sixarm/assertables-rust-crate
The Assertables Rust crate provides many assert macros, such as assert_starts_with, asserts_contains, and asserts_is_match. There are also macros for testing arrays and vectors, function results, readers and streams, and more.
https://github.com/sixarm/collectibles-rust-crate
The Collectables Rust crate provides helpers for standard library collections. The crate provides two general-purpose collections helpers: BTreeMapToSet based on BTreeMap and BTreeSet, and HashMapToSet based HashMap and HashSet.
https://github.com/sixarm/checkline-rust-crate
The checkline crate is a command-line checkbox line picker: it reads lines from stdin, prompts the user with a checkbox per line, then outputs lines to stdout. This crate is a good introduction to the Cursive TUI crate.