Thanks for letting us know, this is an odd edge-case related to BigSur. I’ve let our devs know and they’re taking a closer look to get this fixed!
For backstory, Mac didn’t used to require this kind of code signing, and even for some Big Sur users who used Local in the past, code signing wasn’t necessary. Either way, we’ll get this working so you can use Local!
@r.brewster We just deployed a new build of PHP 7.4.1 that is code signed properly for Mac M1 hardware running Big Sur! In order to get the latest, you’ll need to follow these steps:
Navigate to ~/Library/Application\ Support/Local/lightning-services (note that if you are using Local Beta, the directory is ~/Library/Application\ Support/Local\ Beta/lightning-services
Once in this directory, delete the folder named php-7.4.1+<build-number> (build-number might differ depending on when you downloaded the lightning service)
Restart (or start up) Local
Once you have done that, you can do one of the following to trigger a download of the new PHP 7.4.1 build
Create a new site option
Create a new site making sure to select PHP 7.4.1 under the “custom options” section/step
The site creation will trigger a new download of PHP 7.4.1 that you can use within any existing site in Local
Hotswap the PHP version in an existing site
Select an existing site within Local
Choose PHP 7.4.1 from the PHP drop down in the site overview
Click apply and then confirm the apply step
After that, you should be good to go.
If you get a chance, could you confirm whether or not this works for you?