@eddy147 Generally, you are more likely to find users that can help with Doom Emacs for Elixir in the Doom Discord than Elixir users that also uses Doom Emacs.

To enable snippets in Doom Emacs, you can in your init.el file uncomment the snippets-section.
To add your own yasnippets, there are multiple ways of doing this, but here is one example.
In your config.el, add:

(setq yas-snippet-dirs (append yas-snippet-dirs
                               '("~/.doom.d/snippets"))) ;; replace with your folder for snippets

Sync your configs and you can now create new snippets with M-x yas-new-snippet (keybound to C-c & C-n). Save the snippet with C-c C-c and type: elixir-mode.

Now you will have a new folder with snippets that can be found in the Elixir major mode.
Enabling snippets will give the added benefit of adding all the snippets from Doom-snippets.

For more info I would recommend this page and these two videos:

• Supercharge your Emacs / Spacemacs / Doom with Yasnippets! - YouTube
• Powerful Text Snippets – Emacs YASnippet – Straightforward Emacs - YouTube