Start here

Choose a learning path, task guide, reference, or explanation.

Build your first app

Build a Session counter with the six-lesson desktop learning path. Open a window, handle events, update state, arrange controls, navigate, and test the finished app. Choose macOS, Windows, or Linux, then explore other targets from the completed app.

What are you working on?

• Connect your screens

  Share state between destinations and adapt navigation to the available space.

• Save people’s work

  Store settings and app files between launches.

• Connect to a service

  Fetch data, handle errors, and cancel requests when they are no longer needed.

• Add another language

  Translate interface text and accessibility labels with Fluent.

Browse documentation

• Tutorials

  Build a Session counter on macOS, Windows, or Linux in six lessons, from your first window to events, state, layout, navigation, and a tested app.

• How-to guides

  Find a procedure for a specific app development task.

• Explanation

  Understand pieces, signals, layout, state, and lifecycle.

• Reference

  Look up APIs, CLI commands, configuration, compatibility, and terminology.

For framework implementation, visit Contributing.