However it doesn’t run.
When executing, Xcode says:
dyld: Library not loaded: @rpath/SDL2_ttf.framework/Versions/A/SDL2_ttf
Referenced from: /Users/(me)/Library/Developer/Xcode/DerivedData/SDLTextDemo-dtteyamlzkcexqfubjbkpquqwllu/Build/Products/Debug/SDLTextDemo
Reason: image not found
Actually, this is looking virtually identical to what I was seeing over at Install problem - Catalina - #2 by sjr