This artifact contains the source code for the Flix compiler, modified to support effect exclusion, as detailed in the paper. The modifications include the addition of the \emph{without} expression for excluding effects, and a change to the effect system to support the described Boolean set-based effects.

In addition, it contains the 59 case studies: Code fragments from various open source repositories, where comments indicate a need for effect exclusion. For each fragment, a corresponding Flix code fragment enforces the effect exclusion through a signature or use of the \emph{without} construct.

The artifact also contains two working examples of effect exclusion in realistic applications: a small GUI library and application demonstrating its use, and an eventbus library with a accompanying program.

These elements are all packaged in a virtual machine containing a Visual Studio Code installation with a Flix extension to support standard IDE features, allowing the Flix code to be inspected, modified, and run.