Remix is an open source tool and we encourage anyone to help us improve our tool. You can do that by opening issues, giving feedback or by contributing a pull request to our codebase.
The Remix application is built with JavaScript and it doesn't use any framework. We only
rely on selected set of npm modules, like yo-yo, csjs-inject and others. Check out the package.json files in the Remix submodules to learn more about the stack.
To learn more, please visit our GitHub page.