Ruby on Rails, or Rails, is a server-side web application framework written in Ruby under the MIT License. Rails is a model–view–controller framework, providing default structures for a database, a web service, and web pages.
Next.js is an open-source web development framework built on top of Node.js enabling React based web applications functionalities such as server-side rendering and generating static websites.
Svelte is a tool for building fast web applications. It is similar to JavaScript frameworks such as React and Vue, which share the goal of making it easy to build slick interactive user interfaces. But there's a crucial difference: Svelte converts your app into ideal JavaScript at build time, rather than interpreting your application code at run time.
Slack offers many IRC-style features, including persistent chat rooms organized by topic, private groups, and direct messaging.
GitHub, Inc. is a provider of Internet hosting for software development and version control using Git. It offers the distributed version control and source code management functionality of Git, plus its own features.
Semaphore is a hosted continuous integration and deployment service used for testing and deploying software projects hosted on GitHub and BitBucket.
New Relic is a technology company that develops cloud-based software to help website and application owners track the performances of their services.