Installer shivers-cd-scummvm

{
  "game_slug": "shivers",
  "version": "CD + ScummVM",
  "description": "\"Shivers\" CD edition using ScummVM",
  "notes": "- You will need the CD only one time during install",
  "name": "Shivers",
  "year": 1994,
  "steamid": null,
  "gogslug": "shivers",
  "humblestoreid": "",
  "runner": "scummvm",
  "slug": "shivers-cd-scummvm",
  "installer_slug": "shivers-cd-scummvm",
  "script": {
    "custom-name": "Shivers - CD - ScummVM",
    "game": {
      "game_id": "shivers",
      "path": "$GAMEDIR"
    },
    "installer": [
      {
        "insert-disc": {
          "description": "Please insert Shivers CD",
          "requires": "shivers.ico"
        }
      },
      {
        "merge": {
          "dst": "$GAMEDIR",
          "src": "$DISC"
        }
      },
      {
        "execute": {
          "command": "chmod -R +rw \"$GAMEDIR\""
        }
      }
    ]
  }
}