PocketBase: A Single-Binary Backend Alternative
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the gist
PocketBase is a self-hosted, single-binary backend that bundles SQLite, authentication, real-time subscriptions, and file storage, offering a low-cost alternative to managed services like Firebase.
Architecture and Core Functionality
PocketBase operates as a single Go binary that embeds SQLite to provide a full-stack backend experience. It includes a built-in admin dashboard for managing collections and configuring API rules. The system is designed to be accessed directly from the frontend via a JavaScript SDK, mirroring the workflow of managed platforms like Supabase or Firebase. Security is managed through API rules defined in the admin UI, which support conditional logic such as request.auth.id != '' to restrict access to specific records based on user authentication status.
Extensibility and Deployment
While the core is written in Go, developers can extend functionality using JavaScript or TypeScript hooks. At the time of the video, there are over 82 unique hooks available, including onBootstrap and onRecordCreate. TypeScript code must be compiled down to JavaScript to be executed by the PocketBase runtime. Because the system relies on local SQLite storage, it requires a persistent file system. Hosting on ephemeral platforms like Heroku or Railway is discouraged; a standard VPS is recommended to ensure the pb_data directory, which contains the database and uploaded files, remains intact across deployments. The tool includes production-ready features such as migrations, job scheduling, and logging, though it is currently pre-v1 and requires manual intervention for updates.