Consider specifying minimum node version

[Roger-Heathcote]

You have specified a minimum version in your package json with...

    "engines": {
       "node": "12.16.x"
   },

That's great but I think it only applies to Heroku, local installs with npm i do not enforce it.
It might be a good idea to mention the minimum version in you readme, and/or, create an .nvmrc
file in your project root so NVM users will automatically switch to right version.

As an example this error happens on node 10...
Server error when trying to access
http://localhost:3000/create-tool
const data = Object.fromEntries(searchParams)
TypeError: Object.fromEntries is not a function

Of course you may notice we forgot to do this ourselves so sorry if you've been struggling to get our code to run!