Really serious projects must work without interruption even in the event of failure of individual subsystems. And there are many reasons for disruption: server hardware failure, software failures, crashes at the data center level.

Ruby is an interpreted multiparadigm programming language: dynamic, object-oriented, reflexive, imperative, functional. It is actively used in web development, system administration and operating systems (Mac OS X, Linux, BSD).

Frameworks are software products that simplify the creation and support of technically complex or loaded projects.