jorbi-init-jump.el

(defun jorbi/init.el-jump (&optional package)
  "Jump to the top level use-package definition in the init file."
  (interactive)
  (unless package
    (setq package
          (ido-completing-read
           "Package: "
           (mapcar (lambda (p) (symbol-name (cadr p)))
                   (remove-if-not (lambda (f) (equal (car-safe f) 'use-package))
                                  (with-temp-buffer
                                    (insert-file-contents user-init-file)
                                    (read (concat "(list " (buffer-string) ")"))))) nil t)))
  (find-file user-init-file)
  (goto-char (point-min))
  (re-search-forward (format "( *use-package +%s *$" package) nil nil 1)
  (recenter-top-bottom)
  (pulse-momentary-highlight-one-line (point)))