How do I create a scratch org with Salesforce Platfom licenses

Question

I'm creating a fresh scratch org to deploy source code that we've been working on in a sandbox. Our project makes use of the Salesforce platform licence, and our profile definitions are created with it.

I don't obtain the Salesforce platform licence when I build a new Scratch org with the Enterprise edition, hence I can't deploy my source files.

Because my source also has communities activated and the guest user licence in Developer edition is different, I require the Enterprise edition (rather than the Developer version). The 'Guest' licence type is included in Developer edition scratch orgs, as contrast to the 'Guest User Licence' licence type included in my Sandbox and Enterprise versions.

Below is the project-scratch-def.json file I'm using.

{
  "orgName": "Demo Company",
  "edition": "Enterprise",
  "features": [],
  "settings": {
    "orgPreferenceSettings": {
      "networksEnabled": true,
      "offlineDraftsEnabled": true,
      "pathAssistantsEnabled": true,
      "s1DesktopEnabled": true
    }
  }
}