How to work with both Node and Deno?

[monkpatch]

The only resource I could find about that was on the website of AstroNVIM (fortunately it's what I'm using now) and there was the code:

      denols = function(opts)
        opts.root_dir = require("lspconfig.util").root_pattern("deno.json", "deno.jsonc")
        return opts
      end,
      tsserver = function(opts)
        opts.root_dir = require("lspconfig.util").root_pattern("package.json")
        return opts
      end,

But it doesn't work... As far as I understand it's supposed to check whether there is deno.json in the directory (if so, then use denols), and if there's package.json in the directory, then use tsserver. And in the directory that I open with nvim, there's only deno.json and no package.json... I don't like tsserver complaining about url imports and other stuff that is absolutely necessary in Deno.