{
  "schema": "tesign-radar/item/1",
  "generated_at": "2026-10-02T03:18:05.921Z",
  "lang": "en",
  "slug": "explainroo",
  "url": "https://tesign.com/en/item/explainroo/",
  "alternates": {
    "ko": {
      "html": "https://tesign.com/item/explainroo/",
      "json": "https://tesign.com/item/explainroo/index.json",
      "markdown": "https://tesign.com/item/explainroo/index.md"
    },
    "en": {
      "html": "https://tesign.com/en/item/explainroo/",
      "json": "https://tesign.com/en/item/explainroo/index.json",
      "markdown": "https://tesign.com/en/item/explainroo/index.md"
    }
  },
  "name": "explainroo",
  "use_label": "AI-made explainer videos, offline",
  "one_liner": "Free, open-source explainer videos made by your AI coding agent, with voice, timing and rendering all on your computer.",
  "text": {
    "why": "Recording a voice, editing and wrangling video tools just for a short explainer is a lot. With explainroo you tell your agent the topic, it writes the script and drawings, and you get an MP4.",
    "take": "You can start by giving your agent the repository address and a topic.",
    "build": [
      "The agent writes two files, script.md and scenes.js; the open Kokoro voice model reads the script, Whisper times each word, and the drawings appear on cue. No account or API key. Example looks include paper, chalk and blueprint."
    ],
    "who": [
      {
        "role": "Anyone who wants explainer videos without a studio, especially coding-agent users.",
        "situation": null
      }
    ],
    "start": [
      {
        "command": false,
        "text": "Paste the prompt from the README into your agent with your topic; it clones the repository and follows AGENTS.md."
      }
    ],
    "caveat": [
      "Needs a coding agent, and the README says it works best with Claude Code and Opus 5.5 for now. Recently released, with about 300 stars."
    ]
  },
  "cta": {
    "type": "create",
    "label": "CREATE",
    "url": "https://explainroo.com/"
  },
  "ready": null,
  "categories": [
    "media"
  ],
  "categories_confirmed": true,
  "tags": [
    "영상",
    "ai 에이전트",
    "오픈소스"
  ],
  "platform": [
    "cli"
  ],
  "license": {
    "spdx": "MIT",
    "scope": "permissive",
    "scope_text": "Use, change and redistribute, commercially too. Keep the notice.",
    "url": "https://spdx.org/licenses/MIT.html",
    "note": null,
    "open_source": true
  },
  "language": "JavaScript",
  "source_urls": {
    "canonical": "https://explainroo.com/",
    "github": "https://github.com/vincentsch/explainroo",
    "huggingface": null,
    "app_store": null,
    "sightings": [
      {
        "source": "showhn",
        "url": "https://github.com/vincentsch/explainroo",
        "posted_at": "2026-09-30T13:13:27.000Z",
        "hn_url": "https://news.ycombinator.com/item?id=49908484"
      },
      {
        "source": "github",
        "url": "https://github.com/vincentsch/explainroo",
        "posted_at": "2026-09-30T15:00:00.000Z",
        "hn_url": null
      }
    ]
  },
  "numbers": {
    "as_of": "2026-10-01T22:00:00.000Z",
    "stars": 19,
    "stars_unit": "GitHub stars",
    "stars_checked_at": "2026-09-30T15:44:17.355Z",
    "stars_observed_since_check": 5,
    "star_delta_24h": 5,
    "star_delta_7d": 7,
    "star_delta_30d": 7,
    "star_delta_unit": "GitHub stars gained in the window, GH Archive events summed to as_of",
    "spark_14d": [
      null,
      null,
      null,
      null,
      null,
      null,
      null,
      null,
      null,
      null,
      null,
      null,
      2,
      5
    ],
    "hf_likes": null,
    "hf_likes_observed_at": null,
    "hn_points": 4,
    "hn_points_observed_at": "2026-10-01T11:08:09.398Z",
    "store": null,
    "method": "Star total = the value last checked on GitHub (stars_checked_at) + increases observed via GH Archive since. The 24h · 7d · 30d gains are GH Archive hourly events summed to the reference time (as_of). No score of ours."
  },
  "ranks": null,
  "activity": {
    "pushed_at": "2026-09-30T12:50:51.000Z",
    "owner_type": null,
    "open_issues": null,
    "contributors": null,
    "releases_count": null,
    "latest_release": null,
    "checked_at": null,
    "core_checked_at": "2026-09-30T15:44:17.355Z"
  },
  "signals": [
    {
      "kind": "new",
      "label": "NEW",
      "value": "1h OLD WHEN SEEN"
    },
    {
      "kind": "cross",
      "label": "CROSS-SIGNAL",
      "value": "Show HN + GitHub"
    }
  ],
  "images": {
    "og": "https://tesign.com/img/explainroo-99df211dc0.webp",
    "cover": "https://tesign.com/img/explainroo-99df211dc0.webp",
    "cover_width": 1800,
    "cover_height": 907,
    "gallery": [
      "https://tesign.com/img/explainroo-99df211dc0.webp",
      "https://tesign.com/img/explainroo-1e06e7bb39.webp",
      "https://tesign.com/img/explainroo-190b08469f.png"
    ],
    "alt": "Five explainroo looks: Paper (pour-over coffee), Clean (a sales pipeline), Chalk (a fridge), Blueprint (an API) and Midnight (a cache).",
    "tier": 2
  },
  "dates": {
    "first_seen_at": "2026-09-30T14:44:54.707Z",
    "source_created_at": "2026-09-30T13:13:27.000Z",
    "discovery_hours": 1.5243630555555556,
    "launch_signal_at": "2026-09-30T13:13:27.000Z",
    "kept_at": "2026-10-02T03:18:04.778Z",
    "first_published_at": "2026-10-02T03:18:04.874Z",
    "updated_at": "2026-10-02T03:18:04.837Z",
    "ingestion_mode": "live"
  },
  "notes": [
    "This file was produced by the same build, from the same data, as the tesign.com item page. The text is editorial; the numbers are stored observations.",
    "null in the JSON means not observed — never zero. The Markdown writes [unconfirmed] for it.",
    "Star total = the value last checked on GitHub (stars_checked_at) + increases observed via GH Archive since. The 24h · 7d · 30d gains are GH Archive hourly events summed to the reference time (as_of). No score of ours.",
    "A summary, not legal advice."
  ]
}