Ruby

• Don’t use safe navigation operator unless nil is expected

• Avoid ‘God’ Objects

• Don’t lock gems

• Prefer Hash#fetch over Hash#[]

• Prefer instance methods over class methods

• Prefer shortened namespaces

• Prefer SimpleDelegator over method_missing for wrapper classes

• Prefer Faraday as default HTTP client

• Describe features at a high level rather than querying the user model directly