gnus-read-init-file: Error in ~/.gnus: disroot.org

[jindam, vani]

emacs 27.1 on debian bullseye (userland app [1]):

the entire files (2) are given below:

~/.gnus

(setq gnus-select-method
      '(nnimap "disroot.org"))

(setq user-full-name "jindam, vani"
      user-mail-address "jindam.vani@disroot.org")

(setq smtpmail-auth-supported '(plain))")
(setq smtpmail-smtp-service 465)
(setq mtpmail-stream-type 'tls)

(setq smtpmail-auth-supported '(plain))

(nnimap "disroot.org"
        (nnimap-inbox "INBOX")
        (nnimap-split-methods default)
        (nnimap-expunge t)
        (nnimap-stream ssl))
        (nnimap-authinfo-file "~/.authinfo")))

(setq mail-sources
    ’((file :path "/var/spool/mail/jindam.vani@disroot.org")         
       (imap :server "disroot.org"
             :user "jindam.vani@disroot.org" 
             :port "993"
             :password "password")))

"~/.authinfo

machine disroot.org login jindam.vani@disroot.org password password port 993

~/.getmail/getmailrc

mkdir -m 0700 ~/.getmail

[retriever]
type = IMAP
server = disroot.org
username = jindam.vani@disroot.org
port = 993
password = password

[destination]
type = Maildir
path = ~/.nnmaildir/

~ M-x gnus

gnus-read-init-file: Error in ~/.gnus: disroot.org

Debugger entered--Lisp error: (void-variable disroot\.org)
  eval-buffer(#<buffer  *load*> nil "/home/jindam/.gnus" nil t)  ; Reading at 
buffer position 513
  load-with-code-conversion("/home/jindam/.gnus" "/home/jindam/.gnus" nil t)
  load("~/.gnus" nil t)
  gnus-read-init-file()
  gnus-1(nil nil nil)
  gnus(nil)
  funcall-interactively(gnus nil)
  call-interactively(gnus record nil)
  command-execute(gnus record)
  execute-extended-command(nil "gnus" "gnus")
  funcall-interactively(execute-extended-command nil "gnus" "gnus")
  call-interactively(execute-extended-command nil nil)
  command-execute(execute-extended-command)

(1) https://github.com/CypherpunkArmory/UserLAnd
(2) 
https://web.archive.org/web/20221122134120/https://gitlab.com/-/snippets/2461819/raw/main/.gnus.authinfo.getmail/getmailrc

** questions:
(1) is it mandatory to use getmail or fetchmail?
(2) how do i resolve gnus init error?

regards,
jindam, vani

toots: @jindam_vani@c.im
others: en.wikipedia.org/wiki/User:Jindam_vani