Emotion is a library designed for writing CSS styles with JavaScript.
Envoy is an open-source edge and service proxy, designed for cloud-native applications.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Naver Analytics is a Korean based analytics service.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.