Elm

Elm support is available through the Elm extension.

Tree-sitter: elm-tooling/tree-sitter-elm
Language Server: elm-tooling/elm-language-server

Setup

Zed support for Elm requires installation of elm, elm-format, and elm-review.

Install Elm (or run brew install elm on macOS).
Install elm-review to support code linting:
```
npm install elm-review --save-dev
```
Install elm-format to support automatic formatting
```
npm install -g elm-format
```

Configuring `elm-language-server`

Elm language server can be configured in your settings.json, e.g.:

{
  "lsp": {
    "elm-language-server": {
      "initialization_options": {
        "disableElmLSDiagnostics": true,
        "onlyUpdateDiagnosticsOnSave": false,
        "elmReviewDiagnostics": "warning"
      }
    }
  }
}

elm-format, elm-review and elm need to be installed and made available in the environment or configured in the settings. See the full list of server settings here.