Etrigan (the daemon) is a opinionated collection of modules to solve common problems encountered when running Node.js as a service in production.
Credit: Wikipedia
Check out the readme's for each package as most of the information about each library will be in there!
A plugable config management library for your NodeJS applications.
AWS SSM Parameter Store support for Etrigan Config
Express middlware for making config available to the current request
Productionised feature toggling, with master/worker messaging, last known good state startup, express integration and other features.
Uses the LaunchDarkly node SDK, though the toggle provider could be pulled into a separate package if needed.
Error handling and common building blocks.