Beta download
Private builds for invited testers.
CopperKit beta installers are shared by email invite link for now. The link identifies the tester, creates a short-lived download URL, and records the download request for compatibility and interest tracking.
Need an invite?
Join the beta list first. If your machine is a good fit for the current test round, you can receive a private download link by email.
Join the beta!Your beta build
Mac builds have an integrity seal but are not yet Apple notarized. On first launch, Control-click CopperKit and choose Open. The generated file link expires quickly; reopen your invite link if you need a fresh download.