emacs debug

(lsp-register-client (make-lsp-client :new-connection (lsp-stdio-connection (list "node" "--inspect-brk=9229" "/home/madnificent/code/javascript/ember-language-server/lib/start-server.js" "--stdio"))
                                      :major-modes '(web-mode js2-mode)
                                      :priority -1
                                      :ignore-messages (list "Initializing Ember Language Server at .*$")
                                      :add-on? t
                                      :server-id 'els))