You can export your content into Markdown in Roam Research and then import it into Craft.
Export from Roam Research
In your document view in Roam, click on the three-dot menu (⋯) in the top-right corner.
Click “export” and choose the markdown option.You’ll get a zip file that you can unzip.
Unzip the downloaded file to access your Markdown files.
Import into Craft
Open Craft and navigate to All Documents or Organize view.
Click the Import icon at the bottom of the left sidebar.
Choose Markdown and select the exported files or folder.
Make sure to import the extracted folder, not the ZIP file itself. This ensures all your files and their relationships are properly imported.