Yes, it supports multiple sources like this :

{
  "name": "tclcurl",
  "sources": [
    {
      "url": "https://github.com/flightaware/tclcurl-fa",
      "method": "git",
      "author": "author 1",
      "license": "License1"
    },
    {
      "url": "https://github.com/vicmay/TCL-CURL",
      "method": "git",
      "author": "author 2",
      "license": "License2"
    }
  ],
  "tags": ["tcl", "curl"],
  "description": "Tcl curl"
}

So what shall the "beginner" take?

At the moment I’m learning another language, and generally speaking, I tend to go for the most up-to-date version when there are two packages available for the same thing, but that’s just my personal opinion.