problem with getting unison-gtk2 to run on mac

Question

Probably I'm not doing this right, but I'm trying to get the gui-version of unison to run on my mac (Big Sur 11.4), but when I download binary release (https://github.com/bcpierce00/unison/releases) and run unison-gtk2, it says Warning: DISPLAY not set or empty; starting the Text UI in the output. I also tried to build from source with make UISTYLE=macnew but it didn't build the gui app. The releases I found where all for Catalina, which could be the issue. Which version should I try to install, and how, if I want the GUI version? (I was able to update the text-version of unison using homebrew, but I think I can't get the gui with brew, or can I?)

Answer 1

Replying to @mchlmchl

Fix the "app is damaged" error by putting it in the Applications folder and running the following command:

xattr -cr /Applications/Unison.app

Source: https://github.com/bcpierce00/unison/wiki/CI-Binary-instructions

Download the precompiled app v2.51.4

This works on my MacBook Pro 16inch running macOS Big Sur 11.6.