Elixir

Developers must maintain two distinct ecosystems (e.g., Dart for UI and Elixir for backend) simultaneously, creating unsustainable cognitive load and full-stack fatigue, especially for smaller teams or individual developers.

Railway explicitly does not support SSH access or remote shell (like `rails console`) to running applications, blocking Ruby and Elixir developers who need interactive debugging and introspection capabilities due to the platform's immutability principle.