ruh_roh

https://github.com/sentientmonkey/ruh_roh

While rails' default error pages are great, they look totally unprofessional for any real site. RuRoh provides a quick and easy way to have nicely rendered error pages generated from your stack during deployment. This allows you to re-use your existing layouts and customize your error pages without having to re-create them on the fly (which could result in further errors). The pages can be generated via capistrano during deploy, or generated during a post-commit hook similar to asset pipeline resources.