let
  group = "SetConcealLevel";
  pattern = [
    "*.md"
    "*.json"
    "*.norg"
  ];

  mkConcealFunction = level: {
    __raw = ''
      function()
        vim.opt.conceallevel = ${level}
      end
    '';
  };
in {
  autoGroups = {
    ${group} = {
      clear = true;
    };
  };
  autoCmd = [
    {
      inherit pattern group;
      event = ["BufEnter" "BufWinEnter"];
      callback = mkConcealFunction "3";
    }
    {
      inherit pattern group;
      event = ["BufLeave" "BufWinLeave"];
      callback = mkConcealFunction "0";
    }
  ];
}