Running a Ruflet App

Ruflet's default development loop is intentionally simple.

Default run command

-function">ruflet run main

This starts the Ruflet backend in mobile mode by default.

Targeting web or desktop

-function">ruflet run main --web
-function">ruflet run main --desktop

What Ruflet does for you

• resolves main and main.rb
• checks the nearest Gemfile
• runs bundle install if dependencies are missing
• starts the local Ruflet backend
• prints connection information for the selected target
• opens a web or desktop client when appropriate

Port selection

You can override the default port:

-function">ruflet run main --port 9000

If the requested port is busy, Ruflet will choose another available one and tell you which port it used.

Typical loop

1. Start the app with ruflet run.
2. Edit your Ruby files.
3. Refresh or reconnect the client as needed.
4. Repeat until the flow is right.

When to use ruflet debug

Use ruflet debug when you need to work with the underlying Flutter client more directly instead of staying in the normal Ruby-first loop.