Better Auth Core

This walks you through the Better Auth setup in TypeScript apps: wiring up the server instance with your database driver or adapter, mounting handlers, creating the client, and working with sessions. You'll configure environment variables, set up social or email/password auth, and call server-side APIs with the right headers. The skill pushes you toward a clean separation between client and server, keeps the data layer pluggable, and includes TypeScript inference helpers. It's practical if you're adding authentication to a full-stack TypeScript project and want the plumbing done correctly without hunting through docs.