Galen questions

Galen answers

• What's the most elegant way to implement a digest email without reinventing a queueing system?
• How to debug a rails (3.2) app started by foreman?
• How do I preview emails in Rails?
• Heroku Cedar: How to scale WEB dynos based on time of day
• rails update_attributes returns false when trying to update db values
• Does Omniauth-google-oauth2 simply allow authentication, or does it also address API needs?