init.el

(require 'package)
(let* ((no-ssl (and (memq system-type '(windows-nt ms-dos))
                    (not (gnutls-available-p))))
       (proto (if no-ssl "http" "https")))
  (when no-ssl
    (warn "\
Your version of Emacs does not support SSL connections,
which is unsafe because it allows man-in-the-middle attacks.
There are two things you can do about this warning:
1. Install an Emacs version that does support SSL and be safe.
2. Remove this warning from your init file so you won't see it again."))
  ;; Comment/uncomment these two lines to enable/disable MELPA and MELPA Stable as desired
  (add-to-list 'package-archives (cons "melpa" (concat proto "://melpa.org/packages/")) t)
  ;;(add-to-list 'package-archives (cons "melpa-stable" (concat proto "://stable.melpa.org/packages/")) t)
  (when (< emacs-major-version 24)
    ;; For important compatibility libraries like cl-lib
    (add-to-list 'package-archives (cons "gnu" (concat proto "://elpa.gnu.org/packages/")))))
(package-initialize)
(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(package-selected-packages (quote (company matlab-mode lsp-mode))))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

(autoload 'matlab-mode "matlab" "Matlab Editing Mode" t)
(add-to-list
 'auto-mode-alist
 '("\\.m$" . matlab-mode))
(setq matlab-indent-function t)
(setq matlab-shell-command "matlab")

(require 'lsp-mode)
(add-hook 'matlab-mode-hook #'lsp)

(use-package lsp-mode
  :ensure t
  :commands (lsp lsp-deferred)
  :config
  (setq lsp-log-io t)
  (setq lsp-auto-configure t)
  (lsp-register-client
   (make-lsp-client :new-connection (lsp-stdio-connection "~/dev/matlab-langserver/matlab-langserver.sh")
                    :major-modes '(matlab-mode)
                    :server-id 'matlab-langserver)))

(require 'company)
(global-company-mode)
(setq company-idle-delay 0)
(setq company-minimum-prefix-length 2)
(setq company-selection-wrap-around t)