PocketBase is an efficient embedded database that features a schema builder, data validation capabilities, real-time subscriptions, and a user-friendly REST API. It allows for sensible local file storage or integration with S3 storage, making it straightforward to associate media with your database entries while generating thumbnails dynamically. This versatile tool can function as a standalone application or as a Go framework, which you can enhance with hooks to develop a personalized portable backend. Additionally, it offers official client SDKs to facilitate seamless integration. Unlike other backend solutions such as Firebase, Supabase, or Nhost, PocketBase does not support the execution of cloud functions, but it empowers developers to create tailored business logic for their applications while still producing a single portable executable. This flexibility makes PocketBase an appealing choice for developers seeking a lightweight yet robust backend solution.