gnu global, ctags, and Emacs setup

from blog lmno.lol @alvaro, | ↗ original
Universal ctags (newer) I'm now using universal ctags, as recommended by counsel-etags. From universal ctag's Building on Mac OS: brew tap universal-ctags/universal-ctags brew install --HEAD universal-ctags .ctags --langdef=swift --langmap=swift:+.swift --kinddef-swift=v,variable,variables --kinddef-swift=f,function,functions...