PolyScale is now available on Netlify, allowing developers to improve their website's performance by enabling intelligent serverless caching and compute at the edge. To get started, users can navigate to their Netlify dashboard, search for PolyScale, and enable the integration. Once enabled, they can connect their account to PolyScale and choose a workspace, with options to link an existing cache or create a new one from the Netlify UI. This allows developers to add calls to their site code to grab data, improving database performance and global latency for users.