Get the VSCode ESLint plugin to read flat config files

If you have the ESLint plugin installed in VSCode but are still getting errors that the config file cannot be found, try enabling the "Experimental flat config" in the plugin settings.

Once I did that, the plugin could find the eslint.config.js file I am using (rather than the old .eslintrc format).

I wrote about how to migrate to this new format back in October, if you're interested in that.