Setting up mix formatter for Elixir in Zed

gistfile1.txt

Source: https://github.com/zed-industries/community/issues/1526#issuecomment-1543891012
{
  // ...
  "language_overrides": {
    "Elixir": {
      "format_on_save": {
        "external": {
          "command": "mix",
          "arguments": ["format", "--stdin-filename", "{buffer_path}", "-"]
        }
      }
    }
  }
}