"Streamlining Your Rails App: Migrating from Postgres to SQLite"
In a recent development, Rails 8 has shifted its default database from Postgres to SQLite. This change offers developers the opportunity to simplify their application stack while maintaining performance and reliability. With improved features like performance tuning and reliability, SQLite is now a viable option for production use.

Source: https://dev.to/visini/streamlining-your-rails-8-app-migrating-from-postgres-to-sqlite-5gd7