Strapi, a leading open-source headless CMS, integrates seamlessly with Gatsby, a popular framework among frontend developers, to create fast and efficient websites. The combination of Strapi and Gatsby allows developers to manage content through an API using a familiar Node and React environment. The integration is further enhanced by Gatsby Preview, which offers a live URL to preview changes in content before publishing, akin to "hot reloading" for content. This capability is bolstered by using Strapi Webhooks to trigger instant rebuilds of Gatsby applications on Gatsby Cloud, eliminating the need for manual rebuilds and ensuring users can see real-time updates. Deployment involves setting up Strapi on Heroku and connecting it to Gatsby Cloud, with a focus on leveraging Gatsby's Incremental Builds feature for faster data changes. The process underscores the efficiency and speed improvements achieved by pairing these two technologies, as demonstrated by a Gatsby Blog starter available for quick setup.