Mac application won't launch due to verification problem

[justinmayer]

Describe the bug

The Mac application (version 0.1.0, 20250130.220453) refuses to launch due to a signing/verification problem. The error message displayed says:

"Psst" Not Opened. Apple could not verify "Psst" is free of malware that may harm your Mac or
compromise your privacy.

The only options at that point are: Done (i.e., quit) and Move to Trash

To Reproduce

Install the Mac application via either of the following methods:

• Download the DMG via the link on the README, copy the application to /Applications/, and attempt to launch the application.
• Install the Homebrew cask via brew install --cask psst and attempt to launch the application.

Expected behavior

I expect the Psst Mac application to launch.

Screenshots

Environment

• OS: MacOS
• Version: 15.3 Sequoia

Additional context

Related issues: #53, #314

[jacksongoode]

Yeah, Sequoia made this harder to download apps that weren't signed and authorized by Apple. I think you can

• Go to the Finder and click Go > Applications.
• Now, control-click an app you’d like to open and choose Open from the menu that appears.

Or take another approach:

https://iboysoft.com/tips/allow-apps-to-run-sequoia.html

This isn't unique to Psst but to all unsigned apps.