TLS support
internationalization
uploads
CLI - view routes, template generation, start server, directives, output, args
nicer error and home pages
favicon
utility - is_windows, is_linux, is_mac
authentication - user/session, oauth, jwt, &c.
orm enum/bit fields, json handlers, scopes, migrations, schema
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