Asahi Linux Switches to Copyleft Licensing to Curb Code Copying

What copyleft means

Unlike permissive licenses, which allow code to be reused with few conditions, copyleft licenses require that derivative works be passed on under the same license terms. Anyone who builds on the code must keep it open and follow the same rules. In practice, that makes it harder to absorb the work into other projects quietly or to take it private.

Why it matters

Asahi Linux depends on extensive reverse engineering of Apple hardware, and its results are useful well beyond the project itself. Other distributions and forks can benefit from that groundwork. By tightening the license, the team wants to ensure that reuse comes with clear attribution and that downstream changes remain available to the community.

For users, nothing changes in how the software is installed or used. Developers and downstream projects that incorporate Asahi code, however, will need to check whether their own licensing is compatible with the new terms.