How to use custom runtimeconfig.json from LinqPad?

I've recently started getting an error "System.Drawing.Common is not supported on this platform" when trying to use the EPPlus Nuget package. I only get this error when loading our application's library DLL into LinqPad which references EPPlus to generate an Excel file. I found this page which seems to explain the error:


However the fix involves adding a setting to the runtimeconfig.json file:

"configProperties": {
  "System.Drawing.EnableUnixSupport": true

How can I access the runtimeconfig.json file used by LinqPad or use my own?


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