<#secure method=pgpmime mode=sign> I have following code snippet config: (defun org-property-eval-on-cycle-expand (&optional state) "Evaluate Org inline source block in property value on headline cycle expand." (when (memq state '(children subtree)) (if-let ((inline-src-block (org-entry-get nil "EVAL" nil))) (with-temp-buffer (insert inline-src-block) (goto-char (point-min)) (require 'ob-async nil t) (setq-local org-babel-default-inline-header-args '((:results . "silent") (:async . t))) (let* ((context (org-element-context)) (src-block-info (org-babel-get-src-block-info nil context)) (type (org-element-type context))) (when (eq type 'inline-src-block) ;; TODO use `make-thread' ;; ob-async: advice `org-babel-execute-src-block:async' on ‘org-babel-execute-src-block’ (org-babel-execute-src-block nil src-block-info))))))) (add-hook 'org-cycle-hook #'org-property-eval-on-cycle-expand) I use upper config in bellowing case to auto play video when I expand headline. * eval inline src code block :PROPERTIES: :EVAL: src_sh{mpv "video.mp4"} :END: As upper code snippet marked TODO comment. Because I'm using ob-async. So the org-babel-execute-src-block is async by default with ob-async's advice. I want to get rip of it. Using make-thread, I tried to use (make-thread FUNCTION) (the FUNCTION is a wrapper of org-babel-execute-src-block) but it will block current Emacs instance. How to make it async without blocking current Emacs? Hope someone can help me. Thank you in advance.