Use python3.11
git clone https://github.com/yousseb/meld
pip3.11 install pyobjc # import Foundation
brew install gtk+3
brew install gtksourceview4
brew install gtk-mac-integration # required to work with gtksourceview4
brew install gobject-introspection # required to build below
pip3.11 install PyGObject
brew install adwaita-icon-theme # fixes some visualization issues