Radiance is a web framework for Common Lisp with a focus on allowing you to run multiple applications together. However, it can be just as easily used for any kind of web-focused project.

Radiance offers a number of features to help you develop applications. They're all mostly optional, but they're there to be used if you need them.

• A powerful and flexible routing system
• Exchangeable backends for a variety of components
• Easy to use REST API support
• A variety of server backends
• A database interface that supports both RDBMs and Object Stores
• User objects
• Extensible user profile pages
• Client tracking through sessions
• User authentication and registration
• An extensible administration and settings panel
• Simple resource caching
• Resource access rate limiting

If you're interested in using Radiance to develop your own applications, you will need a capable Common Lisp implementation and Quicklisp. Installing Radiance requires adding a separate dist to Quicklisp, but remains nonetheless rather straight-forward:

From there on out you can continue by reading through Radiance's documentation or jumping straight in with an in-depth tutorial that walks you through all the steps of creating a fully-fledged web application.

If you are instead interested in deploying an existing application that uses Radiance on one of your servers, you can take a short-cut that doesn't require you to set up a development environment. You can use Radiance's automatic bootstrapper to easily create a working setup. All you'll need is a capable Common Lisp implementation.

On Linux using SBCL, starting the installation would look as follows:

The bootstrapper will take care of seting up a Radiance distribution for you in a directory of your choice. Once it is done, you can download and extract the source files of the applications you want to use to their own subdirectories in modules/. Then simply run the launcher file mentioned at the end of the bootstrap and you're all set.

You might also want to read Part 7 of the in-depth tutorial, which explains the setup process in a bit more detail.

If you don't know of any applications yet, Shirakumo provides a few open-source ones that you can simply install and use right away:

• Filebox - A simple, personal file storage system.
• Keyword-Reviews - An intentionally primitive review site.
• Plaster - A paste service using the powerful CodeMirror editor.
• Purplish - A modern imageboard.
• Reader - A simple blogging platform.