static assets middleware internationalization uploads & universal path CLI - view routes, template generation, start server, directives, output, args request level error handler develop/prod/debug modes logger scope (e.g. logger.verbose()) favicon utility - root, path, is_windows, is_linux, is_mac authentication - user/session, oauth, jwt, &c. orm relations, subqueries, enum/bit fields, json handlers, scopes redis - redis client, redis rehydrated classes, redis sessions less/scss notifications - gotify/push/other mechanisms forms job queue - redis/db backed? comment all the things unit tests integration tests documentation & docs site events and observables? error response handler figure out json - requested content type