Roswell is a full-stack environment for Common Lisp development and provides many features that make it easy to test, share and distribute your Lisp applications. Roswell is still in beta. Despite this, the basic interfaces are stable and not likely to change. Please note that you should run the following command as a chosen user to build (compile, load and dump) the lisp-based part of roswell, using the `ros` binary after installation. The result is the dumped lisp image, which is saved in ~/.roswell: $ ros setup You should also repeat this step after upgrading the package.