Email from Peter, 2024-07-29:

I tried to open the new fet, but MacOS kept telling me, that the programm is damaged and needs to be trashed.

I could open it after fuddling with the code-signature

codesign --force --deep --sign - /Applications/fet.app

xattr -d -r com.apple.quarantine /Applications/fet.app

just for your information

best, Peter