ratatui-tui — Claude Code skill: build Rust TUIs

What ratatui-tui does

This skill covers ratatui 0.30.x and the way apps are put together in that line. It ships project templates at four levels: hello-world for a first look, simple-app for single-screen tools, async-app when you need background tasks or network calls, and component-app for multiple views with config and logging. You either copy a template into your project or generate one with cargo generate ratatui/templates.

The pattern it pushes is Elm Architecture: model, message, update, view. You get StatefulWidget examples for lists and tables, layout split with Layout::vertical and Layout::horizontal, and the built-in state types such as ListState and TableState. Async input runs through crossterm's EventStream combined with tokio::select!. Image support goes through ratatui-image 11.x, loading animation through tui-shimmer.

Upgrading from 0.29 is where things bite. block::Title is gone, layout::Alignment became HorizontalAlignment, and Flex::SpaceAround now follows flexbox semantics. Turning off ratatui's default-features also drops layout-cache, and layout performance falls off a cliff unless you re-enable it by hand. Worth checking your Cargo.toml before a release. Building needs Rust 1.88 as MSRV and edition 2024.