{
  "gem": {
    "slug": "flexbox-zombies-vg-1238",
    "name": "Flexbox Zombies",
    "description": "Story-driven course where you fire crossbow bolts at zombies by writing flexbox properties across 12 chapters.",
    "url": "https://mastery.games/flexboxzombies/",
    "domain": "mastery.games",
    "author": "Dave Geddes (@geddski)",
    "license": "free",
    "category": "Learning & Craft",
    "subcategory": "CSS games",
    "tags": [
      "css",
      "flexbox",
      "game",
      "course"
    ],
    "whyGem": "Spaced-repetition built into a zombie plot; retention beats any flexbox article",
    "sourceType": "site",
    "image": "/api/public/library/og/VG-1238-card.svg",
    "pageUrl": "https://vibing.inc/library/flexbox-zombies-vg-1238"
  }
}