To deploy a Remix app on Netlify, start by selecting Netlify as the deployment target when creating a new Remix app using `npx create-remix@latest`. Then, configure the `netlify.toml` file with the necessary settings. Next, push the project to your preferred Git provider and log in to your Netlify account via the CLI or UI. Finally, deploy the site by clicking "Deploy site" in the Netlify UI or running commands like `netlify init`, `remix build`, `netlify-deploy --prod` from the CLI. With these steps, you can quickly and easily deploy your Remix app on Netlify.