How do I add an item to the 'org-publish-project-alist' variable?

Hi all, Beginner in emacs-lisp I address to you concerning the following project: [https://github.com/DarkBuffalo/org-easy-blog](https://github.com/DarkBuffalo/org-easy-blog). Is it possible to add an item to the 'org-publish-project-alist' variable instead of redefining it with setq like in the following bad example? : [https://github.com/DarkBuffalo/org-easy-blog/blob/4a30b86158d3554ab96de8afd3e8979ba31bcb9c/org-easy-blog.el#L293](https://github.com/DarkBuffalo/org-easy-blog/blob/4a30b86158d3554ab96de8afd3e8979ba31bcb9c/org-easy-blog.el#L293) thank you

My choice would be to use [the generalized setter `setf`](https://www.gnu.org/software/emacs/manual/html_node/elisp/Setting-Generalized-Variables.html) with an [`alist-get` call](https://www.gnu.org/software/emacs/manual/html_node/elisp/Association-Lists.html) as the place in a [`with-eval-after-load` form](https://www.gnu.org/software/emacs/manual/html_node/elisp/Hooks-for-Loading.html) of [the `ox-publish` library](https://github.com/emacs-straight/org-mode/blob/b8656a2cef3d5da7270e391222d8139fc042edd5/lisp/ox-publish.el#L65). (with-eval-after-load 'ox-publish (setf (alist-get KEY org-publish-project-alist nil nil #'string=) VALUE)) Edit: Ah, [`ox-publish` is already `require`d](https://github.com/DarkBuffalo/org-easy-blog/blob/4a30b86158d3554ab96de8afd3e8979ba31bcb9c/org-easy-blog.el#L32), so `with-eval-after-load` is not needed.

Thank you very much, I will test this.

thanks for the advice. Here is the result: https://github.com/DarkBuffalo/org-easy-blog/blob/0a3931acafa01361308233ae9504ca6e0883b502/org-easy-blog.el#L293

Try the function (add-to-list), its function help should tell you what you need. There's a few ways to add something to a list, a lot of them do involve re-defining with setq, but specifically re-defining it to the old list + your new entry. Add-to-list will just modify the list in place though.

Thanks, There are several ways to do the same thing. Emacs-lisp is awesome.