coc-settings.json

{
  "diagnostic.displayByAle": false, // ALE does not support hover popups in neovim yet
  "coc.preferences.formatOnSaveFiletypes": [
    "javascript",
    "typescript",
    "json",
    "css",
    "markdown",
    "reason",
    "rescript",
    "terraform"
  ],
  "signature.maxWindowHeight": 14,
  "codeLens.enable": true,
  //	"suggest.autoTrigger": "none",
  //	"suggest.floatEnable": false,
  "coc.preferences.hoverTarget": "float",
  "diagnostic.enableMessage": "always",
  "diagnostic.messageTarget": "float", // Disable redundant popups for linter if using macvim. displayByAle disables this too
  "diagnostic.virtualText": false,
  "languageserver": {
    "terraform": {
      "command": "terraform-ls",
      "args": ["serve"],
      "filetypes": ["terraform", "tf"],
      "initializationOptions": {},
      "settings": {}
    },
    "haskell": {
      "command": "haskell-language-server-wrapper",
      "args": ["--lsp"],
      "rootPatterns": ["*.cabal", "stack.yaml", "cabal.project", "package.yaml", "hie.yaml"],
      "filetypes": ["haskell", "lhaskell"]
    }
  }
  //	"signature.target": "echo", // Disable if using  asyncomplete to show signatures.
}