Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.
Modernizr is a JavaScript library that detects the features available in a user's browser.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
OneSignal is a customer engagement messaging solution.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
React is an open-source JavaScript library for building user interfaces or UI components.
Typeform is a Spanish online software as a service (SaaS) company that specialises in online form building and online surveys.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
VK is a Russian online social media and social networking service.