This snippet shows the line the breakpoint is on in the selection, and if you enter it you will be taken to the breakpoint in the code.

(defun my/browse-breakpoints ()
  (interactive)
  (let* ((entries (-map (lambda (item)
                          (let* ((filename (nth 0 (alist-get 'file-name item)))
                                 (linenumber (alist-get 'line item))
                                 (line-content
                                  (save-window-excursion
                                    (find-file filename)
                                    (goto-char (point-min))
                                    (forward-line (1- linenumber))
                                    (buffer-substring (line-beginning-position) (line-end-position)))))
                           (format "%s: %s: %s" filename linenumber line-content)))
                        (bui-get-entries 'dap-ui-breakpoints-ui 'list)))

         (choice
          (split-string
           (completing-read "Select breakpoint: " entries)
           ":"))
         (file-name (car choice))
         (line-number (string-to-number (nth 1 choice))))
    (find-file file-name)
    (goto-char (point-min))
    (forward-line (1- line-number))))

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