I’m working on bringing tree-sitter-elixir to emacs tree-sitter-lang to make support syntax highlighting. The branch that I’m working on is here. You can clone and point to the package via
load-path for or
use-package if you using it.
If you found any issue such as syntax highlight is the wrong color, comment on this thread or comment on Emacs tree-sitter support · Issue #4 · elixir-lang/tree-sitter-elixir · GitHub with mentioning me.