* [DatabaseValidations v1.2.0](https://github.com/toptal/database_validations) – Database-level ActiveRecord validations that enforce constraints and improve consistency and performance.

* [Harper v5.0.0-beta.4](https://github.com/HarperFast/harper) – Node.js unified in-memory platform combining database, cache, application logic, and messaging for microsecond-level performance.