Hey @DudeThatsErin - Local should work normally on the MacOS 15 Beta but we have seen some users unable to utilize Local Connect. We plan to do more testing in conjunction with the actual public release of MacOS 15 later this year. Being unable to import a zip file might be a separate issue. You could try unzipping your site and manually importing it’s contents into a blank site with the steps here: Manually Import a Local Site
If you’re still having trouble please create a new post and fill out the details of our form.