[2025-05-20 Tue] Announcement: cmack is the new maintainer. Yay! =) - Sacha
Totally bubblegum-and-string at the moment.
You’ll need Open Broadcaster Software and the obs-websocket plugin for it. Set it up in Tools > WebSockets Server Settings. Set a password there.
You will also need websocket, which is available from GNU ELPA. You can install it with M-x package-install RET websocket RET.
You will probably be able to use M-x obs-websocket-connect to connect to your OBS server. I have no idea if it will work for anyone but me, though. Good luck!
You can use (setq obs-websocket-password "yourpasswordhere") in your Emacs configuration file so that it won’t prompt you for the password.
Here’s my config. It uses use-package and hydra.
(use-package websocket)
(defun my/twitch-message (text)
(interactive "MText: ")
(with-current-buffer
(get-buffer-create "Twitch message")
(erase-buffer)
(insert text)
(goto-char (point-min))))
(use-package obs-websocket
:config
(defhydra my/obs-websocket (:exit t)
"Control Open Broadcast Studio"
("c" (obs-websocket-connect) "Connect")
("d" (obs-websocket-send "SetCurrentProgramScene" :scene-name "Desktop") "Desktop")
("e" (obs-websocket-send "SetCurrentProgramScene" :scene-name "Emacs") "Emacs")
("i" (obs-websocket-send "SetCurrentProgramScene" :scene-name "Intermission") "Intermission")
("v" (browse-url "https://twitch.tv/sachachua"))
("m" my/twitch-message "Message")
("t" my/twitch-message "Message")
("<f8>" my/twitch-message "Message") ;; Then I can just f8 f8
("sb" (obs-websocket-send "StartStream") "Stream - begin")
("se" (obs-websocket-send "StopStream") "Stream - end"))
(global-set-key (kbd "<f8>") #'my/obs-websocket/body)
:load-path "~/code/obs-websocket-el" :ensure nil)
Here is another config option using use-package and transient features standard in Emacs 30:
(use-package websocket
:ensure t)
(use-package obs-websocket
:ensure t
:vc (:url "https://github.com/obs-websocket-el/obs-websocket-el.git"
:rev :newest)
:bind (("<f8>" . my/obs-websocket-tmenu))
:config
(require 'transient)
(transient-define-prefix my/obs-websocket-tmenu ()
"Transient menu for controlling OBS via websocket"
["Connection"
("c" "Connect to OBS" obs-websocket-connect)]
["Streaming"
("sb" "Stream - begin"
(lambda () (interactive)
(obs-websocket-send "StartStream")))
("se" "Stream - end"
(lambda () (interactive)
(obs-websocket-send "StopStream")))]
["Scenes"
("d" "Desktop"
(lambda () (interactive)
(obs-websocket-send "SetCurrentProgramScene" :sceneName "Desktop")))
("e" "Emacs"
(lambda () (interactive)
(obs-websocket-send "SetCurrentProgramScene" :sceneName "Emacs")))
("i" "Intermission"
(lambda () (interactive)
(obs-websocket-send "SetCurrentProgramScene" :sceneName "Intermission")))
("v" "Browse Channel"
(lambda () (interactive)
(browse-url "https://twitch.tv/<your-channel-here>")))
]))
Better installation instructions will eventually be written by someone, if anyone wants to actually maintain this.
Protocol reference: 5.x.x Websocket Protocol Reference
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