No app server detected. Using simple static server

Having this same issue and am sad to see they never replied (likely found a solution).

Here is my code snippet of package.json:

{
  "name": "gobetterway",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint"
  },
  "dependencies": {
    "@heroicons/react": "^2.0.18",
    "class-variance-authority": "^0.7.0",
    "clsx": "^2.0.0",
    "next": "13.5.4",
    "react": "^18",
    "react-dom": "^18",
    "tailwind-merge": "^1.14.0"
  },
  "devDependencies": {
    "@netlify/plugin-nextjs": "^4.40.2",
    "@types/node": "^20",
    "@types/react": "^18",
    "@types/react-dom": "^18",
    "autoprefixer": "^10",
    "eslint": "^8",
    "eslint-config-next": "13.5.4",
    "postcss": "^8",
    "prettier": "^3.0.3",
    "prettier-plugin-tailwindcss": "^0.5.5",
    "tailwindcss": "^3",
    "tailwindcss-animate": "^1.0.7",
    "typescript": "^5"
  }
}

Note that I opened my own issue here last night: `netlify dev` results in "Could not find function 'next-dev'"