Rubicon

The Rubicon extension is a small browser add-on that lives in your toolbar. When you're reading or writing a post on Substack or X (Twitter), you click the Rubicon icon and hit Send to Rubicon and the extension pulls the full post off the page, reconstructs it as a clean draft, and opens it inside your Rubicon dashboard ready to review and publish. No copy-pasting. No reformatting. No re-uploading images. The piece you already wrote shows up in Rubicon looking like you wrote it there.