# Sileo Svelte > Physics-based toast notifications for Svelte 5. Sileo Svelte provides typed notification helpers, promise flows, actions, rich snippets, and six viewport positions. ## Documentation - [Sileo Svelte](https://sileo.miel.my/docs.md): Physics-based toast notifications for Svelte 5, with typed helpers, promise states, actions, and rich snippets. - [Installation](https://sileo.miel.my/docs/installation.md): Add the package, import its styles, and mount one toaster for the application. - [Changelog](https://sileo.miel.my/docs/changelog.md): Release history, compatibility notes, breaking changes, fixes, and upgrade guidance. - [Creating toasts](https://sileo.miel.my/docs/creating-toasts.md): Choose a state, update an existing notification, and control its lifetime. - [Async flows](https://sileo.miel.my/docs/async-flows.md): Track promises with one notification that moves through loading, success, and error states. - [Customization](https://sileo.miel.my/docs/customization.md): Change placement, timing, color, classes, and rich content without replacing the package CSS. - [API reference](https://sileo.miel.my/docs/api.md): Methods exposed by sileo and the option types accepted by every toast. - [Toaster reference](https://sileo.miel.my/docs/toaster.md): Configure the mounted toaster, viewport offsets, and application-wide defaults. ## Full reference - [Complete documentation](https://sileo.miel.my/llms-full.txt) - [Source repository](https://github.com/mielsense/sileo-svelte)