Topcoat

Topcoat is a Rust framework for full-stack web apps that renders all of its markup on the server. Async components produce the HTML and can query the database directly, and a $(...) expression is translated to JavaScript so that some interactions re-run in the browser without a WebAssembly bundle or a separate client build step.

Routes can be inferred from the module tree, and the view! macro writes HTML inside Rust. The topcoat CLI creates an app, and its recommended preset includes a todo example backed by Toasty and SQLite; topcoat dev starts the development server. The component library, Topcoat UI, is copied into the project so that its components can be edited there.

Worth knowing

The README calls the project early-stage and experimental and says to expect breaking changes. The roadmap lists deployment docs, static export and pre-rendering as planned rather than built.