ctags specific to go to include standard library code

vim/.vimrc

@@ -5,7 +5,13 @@ autocmd BufWinLeave *.* silent! mkview
 autocmd FileType * setlocal indentexpr=
 autocmd FileType csharp setlocal makeprg=dotnet
 autocmd FileType go setlocal makeprg=go noexpandtab
+nnoremap ,ct :!ctags -R .<CR>
+augroup GoCtags
+  autocmd!
+  autocmd FileType go nnoremap <buffer> ,ct :!ctags -R $(go env GOROOT) .<CR>
+augroup END
 nnoremap ,rc :source $MYVIMRC<CR>
+
 autocmd FileType make setlocal noexpandtab
 autocmd FileType python setlocal makeprg=basedpyright
 autocmd FileType yaml setlocal tabstop=2
@@ -17,7 +23,6 @@ nnoremap ,cl :clast<CR>
 nnoremap ,co :copen<CR>
 nnoremap ,cq :call setqflist([])<CR>:cclose<CR>
 nnoremap ,cr :cnewer<CR>
-nnoremap ,ct :!ctags -R .<CR>
 nnoremap ,cu :colder<CR>
 nnoremap ,h H
 nnoremap ,l L