GitHub MCP failing to start

Hey Colin, it works if pasted to the file. It stopped working when it is passed from env variable as advised here: Secure secret handing for MCPs - #4 by mohitjain

    "github": {
      "type": "http",
      "url": "https://api.githubcopilot.com/mcp/",
      "headers": {
        "Authorization": "Bearer ${env:CURSOR_GITHUB_TOKEN}"
      }
    }

Did you change anything to the interpolation of the file?