myhome/.config/nvim/coc-settings.json

{
  "coc.preferences.formatOnSaveFiletypes": [
    "sh",
    "yaml",
    "json",
    "python",
    "css",
    "Markdown"
  ],
  "languageserver": {
    "bash": {
      "command": "bash-language-server",
      "args": ["start"],
      "filetypes": ["sh"],
      "ignoredRootPaths": ["~"]
    }
  }
}