I believe I downloaded the source code from the master branch here: https://github.com/godotengine/godot
I ran the following commands:
scons platform=osx arch=x86_64 --jobs=$(sysctl -n hw.logicalcpu)
cp -r misc/dist/osx_tools.app ./Godot.app
mkdir -p Godot.app/Contents/MacOS
cp bin/godot.osx.tools.x86_64 Godot.app/Contents/MacOS/Godot
chmod +x Godot.app/Contents/MacOS/Godot
mkdir -p Godot.app/Contents/Frameworks
cp /Users/admin/VulkanSDK/1.2.176.1/macOS/lib/libMoltenVK.dylib Godot.app/Contents/Frameworks/libMoltenVK.dylib
Everything compiled without errors. When I click the .app file the Godot icon appears in the doc trying to run, but no editor appears...