[$] The complexity of BUSL transformation
The Business Source License (BUSL) is a source-available license that "converts" to an open-source license after a period of time. In theory, this means that a few years after a version of a product is released under the BUSL, it becomes open source and is fair game for Linux distributions to package along with regular open-source projects. In practice, the license throws a few curveballs that require special consideration and caution, as the Fedora Project recently discussed.