diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..7694d37
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,3 @@
+# data/raw/<source>/<project>/files/ 下是原始附件，一律走 LFS（不管后缀）。
+# 元数据（metadata.json / description.md / _urls.json / cover.*）留在普通 git。
+data/raw/**/files/**  filter=lfs diff=lfs merge=lfs -text
diff --git a/.gitignore b/.gitignore
index 19592fc..43ef8b6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,11 @@
-# Data outputs (大文件不入库，走 LFS 或外部存储)
-# 忽略目录内容，保留目录本身（靠 .gitkeep 占位）
-data/raw/*
+# Derivative 数据（可从 raw 重建），不入库
 data/processed/*
 data/state/*
-!data/raw/.gitkeep
 !data/processed/.gitkeep
 !data/state/.gitkeep
 
+# data/raw 入库（工程二进制走 LFS，见 .gitattributes）
+
 # Python
 __pycache__/
 *.py[cod]
diff --git a/crawlers/__init__.py b/crawlers/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/crawlers/oshwhub/__init__.py b/crawlers/oshwhub/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/crawlers/oshwhub/__main__.py b/crawlers/oshwhub/__main__.py
new file mode 100644
index 0000000..a4a3b13
--- /dev/null
+++ b/crawlers/oshwhub/__main__.py
@@ -0,0 +1,4 @@
+from .crawler import main
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/crawlers/oshwhub/crawler.py b/crawlers/oshwhub/crawler.py
new file mode 100644
index 0000000..f0c05e6
--- /dev/null
+++ b/crawlers/oshwhub/crawler.py
@@ -0,0 +1,436 @@
+"""oshwhub.com crawler — MVP.
+
+Usage:
+    uv run python -m crawlers.oshwhub \
+        --out data/raw/oshwhub \
+        --top 10 --min-likes 50 --min-grade 4
+
+Or with explicit UUID list:
+    uv run python -m crawlers.oshwhub \
+        --uuids 298873b7fdbe44f8ba0e7351e023bc2c,7b6a398811f14eba9a952b8d2ddd7ace \
+        --out data/raw/oshwhub
+"""
+
+from __future__ import annotations
+
+import argparse
+import dataclasses as dc
+import hashlib
+import html as _html
+import json
+import re
+import sys
+import time
+import urllib.parse
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Iterator
+
+import httpx
+
+API_LIST = "https://oshwhub.com/api/project"
+BASE = "https://oshwhub.com"
+IMG_CDN = "https://image.lceda.cn"
+UA = "FacereDataset/0.1 (+https://git.deepknow.site/Facere/FacereDataset)"
+SLEEP_BETWEEN = 2.0  # seconds between detail-page / file fetches
+
+
+# ---------------------------------------------------------------------------
+# HTTP
+# ---------------------------------------------------------------------------
+
+def make_client(timeout: float = 30.0) -> httpx.Client:
+    return httpx.Client(
+        http2=True,
+        timeout=timeout,
+        headers={"User-Agent": UA, "Accept": "text/html,application/json;q=0.9,*/*;q=0.8"},
+        follow_redirects=True,
+    )
+
+
+def polite_sleep() -> None:
+    time.sleep(SLEEP_BETWEEN)
+
+
+# ---------------------------------------------------------------------------
+# Listing
+# ---------------------------------------------------------------------------
+
+def list_projects(
+    client: httpx.Client,
+    page: int = 1,
+    page_size: int = 30,
+    sort: str = "hot",
+) -> dict:
+    r = client.get(API_LIST, params={"page": page, "pageSize": page_size, "sort": sort})
+    r.raise_for_status()
+    data = r.json()
+    if not data.get("success"):
+        raise RuntimeError(f"list API failed: {data}")
+    return data["result"]
+
+
+def rank_score(item: dict) -> float:
+    """Composite quality score: favor projects with broad engagement."""
+    c = item["count"]
+    return (
+        c["like"] * 3
+        + c["star"] * 1
+        + c["fork"] * 2
+        + c["views"] / 100
+        + item["comments_count"] * 2
+        + (item.get("grade") or 0) * 50
+    )
+
+
+def pick_top(
+    items: list[dict],
+    n: int,
+    min_likes: int,
+    min_grade: int,
+    exclude_copies: bool = True,
+) -> list[dict]:
+    filtered = []
+    for it in items:
+        if exclude_copies and "_copy" in it["path"]:
+            continue
+        if it["count"]["like"] < min_likes:
+            continue
+        if (it.get("grade") or 0) < min_grade:
+            continue
+        filtered.append(it)
+    filtered.sort(key=rank_score, reverse=True)
+    return filtered[:n]
+
+
+# ---------------------------------------------------------------------------
+# Detail page parsing
+# ---------------------------------------------------------------------------
+
+RE_ATTACH_BLOCK = re.compile(r'\\"attachments\\":\[', re.DOTALL)
+RE_LICENSE = re.compile(r'\\"license\\":\\"([^\\"]+)\\"')
+RE_META_DESC = re.compile(
+    r'<meta\s+name="description"\s+content="([^"]*)"', re.IGNORECASE
+)
+RE_TITLE = re.compile(r"<title>([^<]+)</title>", re.IGNORECASE)
+
+
+def _find_balanced_bracket(s: str, start: int, open_ch: str = "[", close_ch: str = "]") -> int:
+    """Return index after the matching close bracket. start must point at open_ch."""
+    assert s[start] == open_ch
+    depth = 0
+    for i in range(start, len(s)):
+        ch = s[i]
+        if ch == open_ch:
+            depth += 1
+        elif ch == close_ch:
+            depth -= 1
+            if depth == 0:
+                return i + 1
+    raise ValueError("unbalanced")
+
+
+def parse_detail_html(h: str) -> dict:
+    """Extract attachments, license, title, description from SSR HTML."""
+    out: dict = {
+        "title": None,
+        "description_meta": None,
+        "license": None,
+        "attachments": [],
+    }
+
+    m = RE_TITLE.search(h)
+    if m:
+        # HTML entities + suffix stripping
+        title = _html.unescape(m.group(1)).strip()
+        for sfx in (
+            " - 立创开源硬件平台 - 深圳创电优选科技有限公司",
+            " - 立创开源硬件平台",
+        ):
+            if title.endswith(sfx):
+                title = title[: -len(sfx)]
+        out["title"] = title
+
+    m = RE_META_DESC.search(h)
+    if m:
+        out["description_meta"] = _html.unescape(m.group(1))
+
+    m = RE_LICENSE.search(h)
+    if m:
+        out["license"] = m.group(1)
+
+    m = RE_ATTACH_BLOCK.search(h)
+    if m:
+        arr_start = m.end() - 1  # point at '['
+        arr_end = _find_balanced_bracket(h, arr_start)
+        block = h[arr_start:arr_end]
+        clean = block.replace('\\"', '"').replace("\\\\", "\\")
+        try:
+            out["attachments"] = json.loads(clean)
+        except json.JSONDecodeError as e:
+            # Keep raw for debugging; skip attachments silently. Caller can log.
+            out["_attachments_parse_error"] = str(e)
+
+    return out
+
+
+# ---------------------------------------------------------------------------
+# Download helpers
+# ---------------------------------------------------------------------------
+
+def download_to(client: httpx.Client, url: str, dest: Path) -> tuple[int, str]:
+    """Stream-download url to dest. Returns (size, sha256)."""
+    dest.parent.mkdir(parents=True, exist_ok=True)
+    h = hashlib.sha256()
+    size = 0
+    with client.stream("GET", url) as r:
+        r.raise_for_status()
+        with open(dest, "wb") as f:
+            for chunk in r.iter_bytes(1 << 15):
+                f.write(chunk)
+                h.update(chunk)
+                size += len(chunk)
+    return size, h.hexdigest()
+
+
+# ---------------------------------------------------------------------------
+# Single-project crawl
+# ---------------------------------------------------------------------------
+
+@dc.dataclass
+class CrawlResult:
+    project_id: str
+    out_dir: Path
+    files_count: int
+    bytes_total: int
+    skipped_files: list[str]
+
+
+def crawl_one(
+    client: httpx.Client,
+    list_item: dict,
+    out_root: Path,
+    fetch_files: bool = True,
+) -> CrawlResult:
+    uuid = list_item["uuid"]
+    path = list_item["path"]
+    proj_dir = out_root / uuid
+    proj_dir.mkdir(parents=True, exist_ok=True)
+
+    # 1. Fetch detail HTML
+    detail_url = f"{BASE}/{path}"
+    r = client.get(detail_url)
+    r.raise_for_status()
+    detail = parse_detail_html(r.text)
+    polite_sleep()
+
+    # 2. Cover image
+    thumb_url = list_item["thumb"]
+    if thumb_url.startswith("//"):
+        thumb_url = "https:" + thumb_url
+    cover_rel = None
+    if thumb_url:
+        ext = Path(urllib.parse.urlparse(thumb_url).path).suffix or ".jpg"
+        cover_rel = f"cover{ext}"
+        try:
+            download_to(client, thumb_url, proj_dir / cover_rel)
+        except httpx.HTTPError as e:
+            print(f"  cover failed: {e}", file=sys.stderr)
+            cover_rel = None
+        polite_sleep()
+
+    # 3. Description markdown (combine meta + introduction)
+    desc_md_parts = [f"# {list_item['name']}\n"]
+    if detail.get("description_meta"):
+        desc_md_parts.append(detail["description_meta"].strip())
+    elif list_item.get("introduction"):
+        desc_md_parts.append(list_item["introduction"].strip())
+    desc_md_parts.append(
+        f"\n---\n"
+        f"- Source: {detail_url}\n"
+        f"- Author: {list_item['owner'].get('nickname')} "
+        f"({list_item['owner'].get('username')})\n"
+        f"- License: {detail.get('license') or 'unknown'}\n"
+        f"- Published: {list_item.get('oshwhub_publish_at')}\n"
+    )
+    (proj_dir / "description.md").write_text("\n".join(desc_md_parts), encoding="utf-8")
+
+    # 4. Files
+    files_meta: list[dict] = []
+    skipped: list[str] = []
+    bytes_total = 0
+    for a in detail.get("attachments", []):
+        src = a.get("src") or ""
+        if not src:
+            continue
+        file_url = IMG_CDN + src if src.startswith("/") else src
+        name = a.get("name") or Path(src).name
+        safe_name = re.sub(r'[/\\:*?"<>|]', "_", name)
+        local_rel = f"files/{safe_name}"
+        local_path = proj_dir / local_rel
+
+        entry: dict = {
+            "name": name,
+            "url": file_url,
+            "original_id": a.get("uuid"),
+            "ext": a.get("ext"),
+            "mime": a.get("mime"),
+            "size": a.get("size"),
+            "md5": a.get("md5"),
+        }
+        if fetch_files:
+            try:
+                size, sha = download_to(client, file_url, local_path)
+                entry["path"] = local_rel
+                entry["sha256"] = sha
+                if entry.get("size") and entry["size"] != size:
+                    entry["size_actual"] = size
+                else:
+                    entry["size"] = size
+                bytes_total += size
+            except httpx.HTTPError as e:
+                skipped.append(f"{name}: {e}")
+                print(f"  file skipped {name}: {e}", file=sys.stderr)
+            polite_sleep()
+        files_meta.append(entry)
+
+    # 5. URL manifest (for files we couldn't download or for future re-download)
+    urls_manifest = {
+        "detail_url": detail_url,
+        "cover_url": thumb_url,
+        "attachments": [
+            {"name": f["name"], "url": f["url"], "original_id": f.get("original_id")}
+            for f in files_meta
+        ],
+    }
+    (proj_dir / "_urls.json").write_text(
+        json.dumps(urls_manifest, ensure_ascii=False, indent=2), encoding="utf-8"
+    )
+
+    # 6. Unified metadata
+    meta = {
+        "source": "oshwhub",
+        "source_url": detail_url,
+        "project_id": uuid,
+        "title": detail.get("title") or list_item["name"],
+        "description_short": list_item.get("introduction") or "",
+        "description_path": "description.md",
+        "author": {
+            "username": list_item["owner"]["username"],
+            "display_name": list_item["owner"].get("nickname"),
+            "user_id": list_item["owner"].get("uuid"),
+        },
+        "license": detail.get("license") or "unknown",
+        "tags": list_item.get("tags") or [],
+        "created_at": list_item.get("created_at"),
+        "updated_at": list_item.get("updated_at"),
+        "published_at": list_item.get("oshwhub_publish_at"),
+        "crawled_at": datetime.now(timezone.utc).isoformat(),
+        "metrics": {
+            "likes": list_item["count"]["like"],
+            "stars": list_item["count"]["star"],
+            "forks": list_item["count"]["fork"],
+            "views": list_item["count"]["views"],
+            "watch": list_item["count"].get("watch", 0),
+            "comments": list_item.get("comments_count", 0),
+        },
+        "cover": {"url": thumb_url, "path": cover_rel} if thumb_url else None,
+        "files": files_meta,
+        "raw_fields": {
+            "path": list_item["path"],
+            "grade": list_item.get("grade"),
+            "origin": list_item.get("origin"),
+            "public": list_item.get("public"),
+            "publish": list_item.get("publish"),
+            "skipped_files": skipped,
+        },
+    }
+    (proj_dir / "metadata.json").write_text(
+        json.dumps(meta, ensure_ascii=False, indent=2), encoding="utf-8"
+    )
+
+    return CrawlResult(
+        project_id=uuid,
+        out_dir=proj_dir,
+        files_count=len(files_meta),
+        bytes_total=bytes_total,
+        skipped_files=skipped,
+    )
+
+
+# ---------------------------------------------------------------------------
+# CLI
+# ---------------------------------------------------------------------------
+
+def iter_candidates(
+    client: httpx.Client,
+    pages: int,
+    page_size: int,
+    sort: str,
+) -> Iterator[dict]:
+    for p in range(1, pages + 1):
+        res = list_projects(client, page=p, page_size=page_size, sort=sort)
+        for it in res["lists"]:
+            yield it
+        polite_sleep()
+
+
+def main(argv: list[str] | None = None) -> int:
+    ap = argparse.ArgumentParser(description="oshwhub MVP crawler")
+    ap.add_argument("--out", type=Path, default=Path("data/raw/oshwhub"))
+    ap.add_argument("--top", type=int, default=10, help="number of projects to crawl")
+    ap.add_argument("--min-likes", type=int, default=50)
+    ap.add_argument("--min-grade", type=int, default=4)
+    ap.add_argument("--pages", type=int, default=3, help="list API pages to scan")
+    ap.add_argument("--page-size", type=int, default=30)
+    ap.add_argument("--sort", default="hot")
+    ap.add_argument("--uuids", type=str, default=None, help="comma-separated explicit UUID list")
+    ap.add_argument("--no-files", action="store_true", help="do not download attachments")
+    ap.add_argument("--limit", type=int, default=None, help="override --top, same effect")
+    args = ap.parse_args(argv)
+
+    n_target = args.limit if args.limit is not None else args.top
+    args.out.mkdir(parents=True, exist_ok=True)
+
+    with make_client() as client:
+        # Build list of items to crawl
+        if args.uuids:
+            wanted = set(args.uuids.split(","))
+            items: list[dict] = []
+            for it in iter_candidates(client, args.pages, args.page_size, args.sort):
+                if it["uuid"] in wanted:
+                    items.append(it)
+                if len(items) == len(wanted):
+                    break
+            if len(items) < len(wanted):
+                missing = wanted - {i["uuid"] for i in items}
+                print(f"WARN: missing uuids (not in top pages): {missing}", file=sys.stderr)
+        else:
+            pool = list(iter_candidates(client, args.pages, args.page_size, args.sort))
+            items = pick_top(
+                pool, n=n_target, min_likes=args.min_likes, min_grade=args.min_grade
+            )
+            if len(items) < n_target:
+                print(
+                    f"WARN: only {len(items)} items passed filters "
+                    f"(wanted {n_target})",
+                    file=sys.stderr,
+                )
+
+        print(f"Crawling {len(items)} projects -> {args.out}")
+        for i, it in enumerate(items, 1):
+            print(f"[{i}/{len(items)}] {it['path']}  ({it['name']})")
+            try:
+                r = crawl_one(client, it, args.out, fetch_files=not args.no_files)
+                print(
+                    f"  OK: {r.files_count} files, {r.bytes_total / 1024 / 1024:.1f} MB "
+                    f"(skipped: {len(r.skipped_files)})"
+                )
+            except Exception as e:
+                print(f"  FAIL: {e}", file=sys.stderr)
+
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/data/raw/oshwhub/1a1e865568d04db59a5a140dd3f13581/_urls.json b/data/raw/oshwhub/1a1e865568d04db59a5a140dd3f13581/_urls.json
new file mode 100644
index 0000000..9c6b5b0
--- /dev/null
+++ b/data/raw/oshwhub/1a1e865568d04db59a5a140dd3f13581/_urls.json
@@ -0,0 +1,71 @@
+{
+  "detail_url": "https://oshwhub.com/qaxslk/dai-PD-QCyou-pian-jian-ce-yi-ji-",
+  "cover_url": "https://image.lceda.cn/pullimage/Xl5EY8fMBTiXzXkTPdbza8bTdtaqEHzKjVZyI5rF.jpeg",
+  "attachments": [
+    {
+      "name": "pd诱骗、检测&emarker读取演示.mp4",
+      "url": "https://image.lceda.cn/attachments/2022/7/uTn5lxDhfdtLIUHzLAJQlfdEqtf59MNG1ct1xOwv.mp4",
+      "original_id": "8227d8f1af9942ada85c34c0bae46520"
+    },
+    {
+      "name": "电流监测及功能演示.mp4",
+      "url": "https://image.lceda.cn/attachments/2022/7/Hrxaxo9kD6biCRjTHRPz9lihZPDspQxTyUOmj0ZP.mp4",
+      "original_id": "5a38d4a5c90c4c929ee6afd90685c54a"
+    },
+    {
+      "name": "qc诱骗演示.mp4",
+      "url": "https://image.lceda.cn/attachments/2022/7/TPVFa8A5CZUYDDcjwqLqGh2CasxOhQuwJwCrTUoV.mp4",
+      "original_id": "8ec5c15c8a884581b93ea7c92e0fd537"
+    },
+    {
+      "name": "flash_download_tool_3.9.2_0.zip",
+      "url": "https://image.lceda.cn/attachments/2022/8/zxKZnl7dstHkJzcCJsSCZH8Z3h4xv3r0dJ9pz4OR.zip",
+      "original_id": "4ebd8bd9cdc04174a33eabde9ad178b6"
+    },
+    {
+      "name": "iic测试.bin",
+      "url": "https://image.lceda.cn/attachments/2022/8/vry47jDECDC6Oi580rjR3A8kPBqxUEqrua6CyTHJ.bin",
+      "original_id": "62f50e21b4794a849019abf339cb0a87"
+    },
+    {
+      "name": "BOM清单.csv",
+      "url": "https://image.lceda.cn/attachments/2022/8/bgFVrW1VricnDvTBz3teVuMEZHn5p01utREdg1fB.txt",
+      "original_id": "1bf37839d71245baa542e5edd2c87c51"
+    },
+    {
+      "name": "IBOM焊接图.zip",
+      "url": "https://image.lceda.cn/attachments/2022/9/AMssLlo7nElKEtewGB5MR9CCltg0o1ANYHcLHIlc.zip",
+      "original_id": "9510dc61265243f691828f76ed24eb0c"
+    },
+    {
+      "name": "新版本直通监测,主界面,PD监测抓包,Emarker读取演示.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/3/ml3J4ndhkWtv85i37YK1bXUyl8ss2Me00izGjSPv.mp4",
+      "original_id": "aacf4846545f4b26a2ca90355e51ead3"
+    },
+    {
+      "name": "新版本PD,PPS诱骗,PD抓包，Emarker读取演示.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/3/UoNgPZVjkgceMl8H1AlPv0HGYMX0cGpSjz71rCzO.mp4",
+      "original_id": "323305b48e6a4fd99de89d4892f2b8ca"
+    },
+    {
+      "name": "新版本QC,QC3诱骗演示.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/3/GVI4oTGtFn7v7M97a0wCk713lRsC0FI9gtSBtemK.mp4",
+      "original_id": "c4a07773431643e28aa45a3d523e7869"
+    },
+    {
+      "name": "新版本设置项等其它功能演示.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/3/okBYwyFpliRTbS0WjOq3nDOd8VArZNrienxnYOd5.mp4",
+      "original_id": "cfe67e3dd4bb44bea05a6b07fa396618"
+    },
+    {
+      "name": "TTL1.2.3 免注册.bin",
+      "url": "https://image.lceda.cn/oshwhub/project/attachments/3c8beccc8bb645d7900f78ff8b5bd511.bin",
+      "original_id": "44872f72038747a8b42ad88b812a3443"
+    },
+    {
+      "name": "OTA1.2.3 免注册.bin",
+      "url": "https://image.lceda.cn/oshwhub/project/attachments/72261283c1a44d9d9c48e1a3a7c332b4.bin",
+      "original_id": "2172e76f1d4d42ccb4d89d2a27d7be5f"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/data/raw/oshwhub/1a1e865568d04db59a5a140dd3f13581/cover.jpeg b/data/raw/oshwhub/1a1e865568d04db59a5a140dd3f13581/cover.jpeg
new file mode 100644
index 0000000..4cee70a
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+# 支持PD3.1/米PPS与Emarker读取的USB电压电流表
+
+基于ESP32-PICO-D4的USB功率计，实现了PD3.1/PPS/QC的监测与诱骗，支持米私有诱骗、Emarker读取以及诸多其他功能，具体功能可看项目功能介绍。
+
+---
+- Source: https://oshwhub.com/qaxslk/dai-PD-QCyou-pian-jian-ce-yi-ji-
+- Author: qaxslk (qaxslk)
+- License: CC BY-NC-SA 4.0
+- Published: 2024-06-07T01:11:10.000Z
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+
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+    },
+    {
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+      "url": "https://image.lceda.cn/attachments/2023/11/ckssTsthpECXfdRpgjCxV9QyzRBvDjzh0ft6X4kI.mp4",
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+    }
+  ],
+  "raw_fields": {
+    "path": "armbian-pythoniot/yuzumaix-v831",
+    "grade": 4,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  }
+}
\ No newline at end of file
diff --git a/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/_urls.json b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/_urls.json
new file mode 100644
index 0000000..299f093
--- /dev/null
+++ b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/_urls.json
@@ -0,0 +1,16 @@
+{
+  "detail_url": "https://oshwhub.com/yanranxiaoxi/Multi-adaptation-Wi-Fi-Geiger-Counter-Double-Tube-Type",
+  "cover_url": "https://image.lceda.cn/pullimage/Z4KOXBgwtmwMIUpJC8ZSyFWeY6hBg2899oPP5UeZ.jpeg",
+  "attachments": [
+    {
+      "name": "3D打印外壳与电池版改装.zip",
+      "url": "https://image.lceda.cn/attachments/2023/9/Ps19TA0QecWL9XXjgOxNhHxRj8FvpO7kttXqF8KI.zip",
+      "original_id": "de773a049b1149ea8f5b885277d839ac"
+    },
+    {
+      "name": "MWGC-Firmware_v0.1.3.20241125a.bin",
+      "url": "https://image.lceda.cn/oshwhub/project/attachments/f59327bb7a8f4180851468b9dee83944.bin",
+      "original_id": "df5c50cf692548afb2ee27096178c282"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/cover.jpeg b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/cover.jpeg
new file mode 100644
index 0000000..1e78ca6
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diff --git a/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/description.md b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/description.md
new file mode 100644
index 0000000..2b63294
--- /dev/null
+++ b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/description.md
@@ -0,0 +1,9 @@
+# 小汐 & 阿曈 -> 盖革计数器（MWGC-2T）
+
+⭐ 中文固件多管型 Wi-Fi 盖革计数器（MWGC-2T） ⭐
+
+---
+- Source: https://oshwhub.com/yanranxiaoxi/Multi-adaptation-Wi-Fi-Geiger-Counter-Double-Tube-Type
+- Author: 久治明千树汐 (yanranxiaoxi)
+- License: CC BY-SA 4.0
+- Published: 2024-11-25T01:38:14.000Z
diff --git a/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/files/3D打印外壳与电池版改装.zip b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/files/3D打印外壳与电池版改装.zip
new file mode 100644
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--- /dev/null
+++ b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/files/3D打印外壳与电池版改装.zip
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e23537c79e44be7dadb89ba82fb3b195ae2436d8200c62659f31a87093f6fd7e
+size 3798995
diff --git a/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/files/MWGC-Firmware_v0.1.3.20241125a.bin b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/files/MWGC-Firmware_v0.1.3.20241125a.bin
new file mode 100644
index 0000000..c88d92b
--- /dev/null
+++ b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/files/MWGC-Firmware_v0.1.3.20241125a.bin
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:87bf7129731121ebaead85278e9aad8f8b2ea0ff3f5f9b3d46ed29e65f82d577
+size 428496
diff --git a/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/metadata.json b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/metadata.json
new file mode 100644
index 0000000..608cafa
--- /dev/null
+++ b/data/raw/oshwhub/b077573dfb764e95b1d27faba49cca65/metadata.json
@@ -0,0 +1,63 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/yanranxiaoxi/Multi-adaptation-Wi-Fi-Geiger-Counter-Double-Tube-Type",
+  "project_id": "b077573dfb764e95b1d27faba49cca65",
+  "title": "小汐 & 阿曈 -> 盖革计数器（MWGC-2T）",
+  "description_short": "⭐ 中文固件多管型 Wi-Fi 盖革计数器（MWGC-2T） ⭐",
+  "description_path": "description.md",
+  "author": {
+    "username": "yanranxiaoxi",
+    "display_name": "久治明千树汐",
+    "user_id": "eac388b086064c2087f67a10b524a911"
+  },
+  "license": "CC BY-SA 4.0",
+  "tags": [],
+  "created_at": "2023-03-11T16:40:16.000Z",
+  "updated_at": "2026-01-30T13:13:39.000Z",
+  "published_at": "2024-11-25T01:38:14.000Z",
+  "crawled_at": "2026-04-23T11:26:00.127742+00:00",
+  "metrics": {
+    "likes": 212,
+    "stars": 365,
+    "forks": 189,
+    "views": 49755,
+    "watch": 0,
+    "comments": 168
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/pullimage/Z4KOXBgwtmwMIUpJC8ZSyFWeY6hBg2899oPP5UeZ.jpeg",
+    "path": "cover.jpeg"
+  },
+  "files": [
+    {
+      "name": "3D打印外壳与电池版改装.zip",
+      "url": "https://image.lceda.cn/attachments/2023/9/Ps19TA0QecWL9XXjgOxNhHxRj8FvpO7kttXqF8KI.zip",
+      "original_id": "de773a049b1149ea8f5b885277d839ac",
+      "ext": "zip",
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+      "size": 3798995,
+      "md5": "3ec71e545b0f0b70f93b58599c8d1c7e",
+      "path": "files/3D打印外壳与电池版改装.zip",
+      "sha256": "e23537c79e44be7dadb89ba82fb3b195ae2436d8200c62659f31a87093f6fd7e"
+    },
+    {
+      "name": "MWGC-Firmware_v0.1.3.20241125a.bin",
+      "url": "https://image.lceda.cn/oshwhub/project/attachments/f59327bb7a8f4180851468b9dee83944.bin",
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+      "ext": "bin",
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+      "sha256": "87bf7129731121ebaead85278e9aad8f8b2ea0ff3f5f9b3d46ed29e65f82d577"
+    }
+  ],
+  "raw_fields": {
+    "path": "yanranxiaoxi/Multi-adaptation-Wi-Fi-Geiger-Counter-Double-Tube-Type",
+    "grade": 4,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  }
+}
\ No newline at end of file
diff --git a/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/_urls.json b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/_urls.json
new file mode 100644
index 0000000..b4002b8
--- /dev/null
+++ b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/_urls.json
@@ -0,0 +1,16 @@
+{
+  "detail_url": "https://oshwhub.com/diy17102800/tu-teng-zvs",
+  "cover_url": "https://image.lceda.cn/pullimage/Qf1Gu6y5cpQQQ5YzNoFf4gqZYwNCOzKYlO9eerXB.jpeg",
+  "attachments": [
+    {
+      "name": "测试视频.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/3/hcSO16Po6ZKhmHnR3M2UJ2ttbc4jNDE0FthmsFE0.mp4",
+      "original_id": "e0ef95cfceb04edc9076a4e8f5ebd9dd"
+    },
+    {
+      "name": "1133.mp4",
+      "url": "https://image.lceda.cn/attachments/2024/5/BiyaOevIDxQtW4RbBjuS1FZ3P2cDsGBB1M5mf2aN.mp4",
+      "original_id": "40cab71898a7457b92f5e6ef7c8a8bd5"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/cover.jpeg b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/cover.jpeg
new file mode 100644
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diff --git a/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/description.md b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/description.md
new file mode 100644
index 0000000..1f81b47
--- /dev/null
+++ b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/description.md
@@ -0,0 +1,9 @@
+# 大功率感应加热2500W 增强型ZVS
+
+测试已成功
+
+---
+- Source: https://oshwhub.com/diy17102800/tu-teng-zvs
+- Author: 金石之声 (diy17102800)
+- License: TAPR Open Hardware License
+- Published: 2024-05-20T02:40:14.000Z
diff --git a/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/files/1133.mp4 b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/files/1133.mp4
new file mode 100644
index 0000000..0490573
--- /dev/null
+++ b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/files/1133.mp4
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7a707feb0a82435b59439552f211075dafeab39aa5d490e5195d861f75515126
+size 1100753
diff --git a/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/files/测试视频.mp4 b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/files/测试视频.mp4
new file mode 100644
index 0000000..66aaec4
--- /dev/null
+++ b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/files/测试视频.mp4
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:613b326cb8c3c222c955c259968b4fac5dd31daa5a93e85e53a55b24ef30c320
+size 8101940
diff --git a/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/metadata.json b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/metadata.json
new file mode 100644
index 0000000..d3806b6
--- /dev/null
+++ b/data/raw/oshwhub/f974b06d9c01470bb319e7df6d4512c9/metadata.json
@@ -0,0 +1,63 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/diy17102800/tu-teng-zvs",
+  "project_id": "f974b06d9c01470bb319e7df6d4512c9",
+  "title": "大功率感应加热2500W 增强型ZVS",
+  "description_short": "测试已成功",
+  "description_path": "description.md",
+  "author": {
+    "username": "diy17102800",
+    "display_name": "金石之声",
+    "user_id": "de940107caa34d989e9485cc41026732"
+  },
+  "license": "TAPR Open Hardware License",
+  "tags": [],
+  "created_at": "2023-02-14T16:30:50.000Z",
+  "updated_at": "2025-10-27T07:11:41.000Z",
+  "published_at": "2024-05-20T02:40:14.000Z",
+  "crawled_at": "2026-04-23T11:30:55.186691+00:00",
+  "metrics": {
+    "likes": 355,
+    "stars": 708,
+    "forks": 378,
+    "views": 61550,
+    "watch": 0,
+    "comments": 265
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/pullimage/Qf1Gu6y5cpQQQ5YzNoFf4gqZYwNCOzKYlO9eerXB.jpeg",
+    "path": "cover.jpeg"
+  },
+  "files": [
+    {
+      "name": "测试视频.mp4",
+      "url": "https://image.lceda.cn/attachments/2023/3/hcSO16Po6ZKhmHnR3M2UJ2ttbc4jNDE0FthmsFE0.mp4",
+      "original_id": "e0ef95cfceb04edc9076a4e8f5ebd9dd",
+      "ext": "mp4",
+      "mime": "video/mp4",
+      "size": 8101940,
+      "md5": "229f35937d3b13a0a862b7d47654eb0f",
+      "path": "files/测试视频.mp4",
+      "sha256": "613b326cb8c3c222c955c259968b4fac5dd31daa5a93e85e53a55b24ef30c320"
+    },
+    {
+      "name": "1133.mp4",
+      "url": "https://image.lceda.cn/attachments/2024/5/BiyaOevIDxQtW4RbBjuS1FZ3P2cDsGBB1M5mf2aN.mp4",
+      "original_id": "40cab71898a7457b92f5e6ef7c8a8bd5",
+      "ext": "mp4",
+      "mime": "video/mp4",
+      "size": 1100753,
+      "md5": "3dc3d5f4c556e3c057eede3cfbcefb83",
+      "path": "files/1133.mp4",
+      "sha256": "7a707feb0a82435b59439552f211075dafeab39aa5d490e5195d861f75515126"
+    }
+  ],
+  "raw_fields": {
+    "path": "diy17102800/tu-teng-zvs",
+    "grade": 4,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  }
+}
\ No newline at end of file
diff --git a/docs/sources/oshwhub.md b/docs/sources/oshwhub.md
new file mode 100644
index 0000000..58d8067
--- /dev/null
+++ b/docs/sources/oshwhub.md
@@ -0,0 +1,92 @@
+# oshwhub.com 数据源调研
+
+**平台**：立创开源硬件平台（嘉立创 EDA / 深圳创电优选科技有限公司）
+**URL**：https://oshwhub.com
+**调研日期**：2026-04-23
+
+## 站点架构
+
+- Next.js App Router SPA；详情页 `/detail/<uuid>` 和 `/<user>/<slug>` 均 SSR（HTML 内含完整元数据 + attachments 数组）
+- axios baseURL 为 `https://oshwhub.com`（见 `/_next/static/chunks/8661-*.js`）
+- 首页 / explore 列表数据靠客户端 fetch 渲染（首屏 HTML 里没有卡片 DOM）
+
+## robots.txt
+
+```
+User-agent: *
+Disallow: /posts
+Sitemap: https://oshwhub.com/sitemap.xml
+```
+
+详情页、explore、API 均允许抓取。
+
+## 可用 API（无需鉴权）
+
+### 项目列表
+`GET https://oshwhub.com/api/project?page=N&pageSize=M&sort=hot`
+
+- `sort`：`hot`（默认，按热度）/`like`/`new` 等
+- `pageSize`：最大 50 可用，试过 100 返回空
+- 返回：`{success, code, result:{page, pageSize, total, totalPage, lists:[...]}}`
+- total ≈ 12493（2026-04 快照）
+
+每条 list item 字段：
+- `uuid`, `name`, `introduction`, `path`（= `<username>/<slug>`）
+- `owner`：`{uuid, username, nickname, avatar, team}`
+- `count`：`{fork, star, like, views, watch}`
+- `grade`（1-4，4 是精品徽章）
+- `thumb`（封面 URL，`image.lceda.cn` 或 `//image.lceda.cn` 前缀）
+- `created_at`, `updated_at`, `oshwhub_publish_at`
+- `tags`, `public`, `publish`, `comments_count`
+
+### 项目详情（HTML 解析）
+`GET https://oshwhub.com/<path>` 或 `/detail/<uuid>`
+
+HTML 内嵌 escaped JSON，关键字段：
+- `\"license\":\"GPL 3.0\"` 等（许可证）
+- `\"creator\":{\"uuid\":\"...\"}`
+- `\"attachments\":[{ name, src, mime, ext, size, md5, download_count, uuid }, ...]`
+- `<title>` 含项目名；`<meta name="description">` 含 introduction
+
+### 文件下载
+- **附件** (`attachments[].src`)：`https://image.lceda.cn{src}`
+  - 例：`/attachments/2020/7/mRn5hQZRhmx5r4usGxFmy8BXsCIHw5QoAT5HaLGC.pdf`
+  - 已验证 HTTP 200，无鉴权
+  - 覆盖 PDF / ZIP / MP4 等
+- **工程源文件** (`fs-web-stream.jlc.com/fs-web-stream/file-operation/download/<snowflake-id>`)
+  - HTML 里出现，但能否直接下载未测试
+  - 优先级：P1；v0.1 先不抓
+
+### 未找到 / 留作后续
+- EasyEDA 工程源 JSON（schematic/PCB 的真正源）：推测在 `u.lceda.cn` 下，需登录
+- 项目详情 JSON API：`/api/project/<uuid>` 返回 `{"code":104001,"success":false}`（试过 GET/POST/路径形式均失败，疑似此端点需 session）
+
+## 已知字段与 schema 映射
+
+| 本项目 schema 字段 | oshwhub 来源 |
+|-----|-----|
+| `source` | 常量 `"oshwhub"` |
+| `source_url` | `https://oshwhub.com/<path>` |
+| `project_id` | `uuid` |
+| `title` | `name` |
+| `description` | HTML `<meta description>` + 长描述（HTML 正文截取） |
+| `author` | `owner.nickname` / `owner.username` |
+| `license` | HTML 嵌入 JSON 的 `license` 字段 |
+| `created_at` / `updated_at` | 列表 API 同名字段 |
+| `crawled_at` | 运行时写入 |
+| `tags` | 列表 API `tags` |
+| `files[]` | `attachments[]` 映射 |
+| `metrics` | `count.{like,star,fork,views}` + `grade` |
+
+## 速率与礼貌
+
+- 列表 API：空载实测 < 300ms，无限流
+- 详情页 HTML：~500KB/个，建议 QPS ≤ 0.5
+- 附件：CDN `image.lceda.cn`，无需限流但建议 1s 间隔
+
+## 陷阱 / 待确认
+
+1. `fs-web-stream.jlc.com` 下载是否需 referer / cookie，未测
+2. 长描述（含图片、表格）的 HTML 提取保真度，可能需要保留原 HTML
+3. `license` 字段取值集合未枚举完（已见：`GPL 3.0` / `CC-BY-SA`...需全量跑后统计）
+4. `grade=4` 大概率是精品徽章但文档未说明具体判据
diff --git a/log.md b/log.md
index 68eddd9..42d1b00 100644
--- a/log.md
+++ b/log.md
@@ -4,6 +4,63 @@
 
 ---
 
+## 2026-04-23 19:30  Phase 1 MVP：10 个高质量 oshwhub 项目入库
+
+**Claude 会话**：承接仓库初始化
+
+### API 调研结论
+
+- 列表 API：`GET https://oshwhub.com/api/project?page=N&pageSize=M&sort=hot`，无鉴权，返回 12493 个项目元数据（含 grade / likes / stars / views / forks）
+- 详情：`GET https://oshwhub.com/<path>` 是 SSR HTML，嵌入 escaped JSON，含 `license` + `attachments[]`（每个带 name / src / size / md5 / ext / mime / download_count）
+- 附件 CDN：`https://image.lceda.cn{src}` — 已验证无鉴权直接下载
+- EasyEDA 工程源 JSON（`u.lceda.cn`）需登录，v0.1 不抓
+- 详细调研见 `docs/sources/oshwhub.md`
+
+### 选 10 个高质量项目
+
+判据：`grade == 4`（平台精品徽章） + `likes ≥ 100` + 应用领域多样（避免同类堆叠）+ 排除 `_copy` 派生仓。
+
+10 个项目覆盖：调试器、加热台、盖革计数器、可调电源、焊台、智能手表、USB 测电流、ZVS 感应加热、AI 开发板、红外热成像。
+
+### MVP 爬虫
+
+位置：`crawlers/oshwhub/crawler.py`
+
+- `list_projects()` — 列表 API 分页
+- `pick_top()` — 按 like×3 + star + fork×2 + views/100 + comments×2 + grade×50 排序
+- `parse_detail_html()` — 从 SSR HTML 提取 title / license / description / attachments
+- `crawl_one()` — 每项目产出：`metadata.json` / `description.md` / `cover.*` / `files/*` / `_urls.json`
+- QPS ≤ 0.5（`SLEEP_BETWEEN = 2.0`），UA 显式声明 `FacereDataset/0.1`
+
+### 抓取与入库
+
+- 10/10 成功，52 个附件，**524 MB**
+- Gitea LFS（v25.4.3 原生支持）+ 本地 `git-lfs 3.5.1`（用户态二进制装在 `~/.local/bin/`）
+- `.gitattributes` 规则：`data/raw/**/files/**` 一律走 LFS；元数据（metadata.json / description.md / \_urls.json / cover.\*）走普通 git
+- 每项目目录结构：
+  ```
+  data/raw/oshwhub/<uuid>/
+  ├── metadata.json      # 按 schemas/project.schema.json
+  ├── description.md
+  ├── cover.{jpg,png,jpeg}
+  ├── _urls.json         # 所有原始 URL 清单
+  └── files/*            # 原始附件（LFS）
+  ```
+
+### 改动汇总
+
+- 新增：`crawlers/oshwhub/{__init__,__main__,crawler}.py`、`schemas/project.schema.json`、`docs/sources/oshwhub.md`、`pyproject.toml`
+- 修改：`.gitattributes`（缩窄到 `data/raw/**/files/**`）、`.gitignore`（移除 `data/raw/*` 排除）
+
+### 下一步建议给 Charles
+
+1. 验收 10 个项目元数据质量（随机抽 2-3 条对照原站）
+2. 决定 Phase 1.4 放量目标（50？500？全量 12493？）
+3. 未解决：`fs-web-stream.jlc.com` 下载（工程源？）、`u.lceda.cn` 登录态抓工程 JSON
+4. Phase 2 准备：GitHub KiCad repo 调研
+
+---
+
 ## 2026-04-23 18:50  仓库初始化 & 数据源调研
 
 **Claude 会话**：初始化
diff --git a/plan.md b/plan.md
index fefc155..debef90 100644
--- a/plan.md
+++ b/plan.md
@@ -21,45 +21,46 @@
 
 - [x] `README.md` / `CLAUDE.md` / `plan.md` / `log.md`
 - [x] 目录骨架 `crawlers/ schemas/ scripts/ data/ docs/`
-- [x] `.gitignore`（排除 `data/raw` `data/processed` `data/state` `venv` `__pycache__`）
+- [x] `.gitignore`（排除 derivative 目录）/ `.gitattributes`（LFS 规则）
 - [x] 初始提交并推送
 
 ---
 
-## Phase 1 — 立创开源平台（oshwhub.com）MVP
+## Phase 1 — 立创开源平台（oshwhub.com）MVP ✅ 首批完成
 
 **目标**：跑通 10 个项目的完整抓取，验证 schema。
-**预计工期**：2-3 天（人+Claude 协作）
+**实际**：10/10 成功，52 附件，524 MB 入 LFS。
 
-### 1.1 调研（0.5 天）
+### 1.1 调研 ✅
 
-- [ ] 确认 API 入口：Next.js SPA，首页 800KB HTML 里内联了首屏 props，但翻页/详情靠 `/_next/data/<buildId>/...json` 或 XHR。需要：
-  - 打开浏览器 DevTools，录一段 explore → 详情 → 下载的 network trace，提取 API endpoints（推荐 `chrome-devtools` MCP）
-  - 核对 `sitemap.xml` 作为项目 URL 源（已确认存在）
-- [ ] 许可证字段位置：详情页有"开源协议"显示，确认对应 JSON key
-- [ ] 确认 sitemap 完整性：是否覆盖全部公开项目；若否，fallback 用 `/explore?sort=hot&page=N`
+- [x] 列表 API `/api/project?page=N&pageSize=M&sort=hot`（无鉴权）
+- [x] 详情页 SSR HTML 嵌入 escaped JSON，含 attachments 数组与 license
+- [x] 附件 CDN `image.lceda.cn/{src}` 直连
+- [x] `docs/sources/oshwhub.md` 调研笔记
 
-### 1.2 爬虫 MVP（1 天）
+### 1.2 爬虫 MVP ✅
 
-`crawlers/oshwhub/`：
+`crawlers/oshwhub/crawler.py`：
 
-- [ ] `discover.py` — 从 sitemap + explore 列表产出项目 ID stream（去重、断点续）
-- [ ] `fetch.py` — 单项目抓取：详情 JSON、预览图、可下载文件（原理图 JSON / 工程压缩包）
-- [ ] `normalize.py` — 映射到统一 schema，写 `data/processed/oshwhub/projects.jsonl`
-- [ ] `__main__.py` — CLI：`--limit N --since DATE --resume`
-- [ ] 速率：默认 QPS 0.5，遇 429/5xx 指数退避
+- [x] 列表分页 + 质量打分排序
+- [x] HTML 解析：title / description / license / attachments
+- [x] 每项目目录：metadata / description / cover / files / _urls
+- [x] QPS ≤ 0.5，UA 真实声明
 
-### 1.3 验收（0.5 天）
+### 1.3 验收 ⏳
 
-- [ ] 跑 `--limit 10` 成功，10 条 jsonl 通过 schema 校验（`scripts/validate.py`）
-- [ ] 抽查 3 条人工确认字段正确
-- [ ] 产出 `docs/sources/oshwhub.md` 调研笔记
+- [x] 10/10 成功，产出符合 `schemas/project.schema.json`
+- [ ] **待 Charles**：随机抽查 2-3 条对照原站
+- [ ] `scripts/validate.py` 自动 schema 校验（未写，后续补）
 
-### 1.4 放量（视情况）
+### 1.4 放量（待决策）
 
-- [ ] 估算全量规模（项目数 × 平均附件大小）
-- [ ] 跟 Charles 对齐存储方案（LFS vs S3 vs 单机盘）
-- [ ] 分批跑（每批 1-5 万项目），产出进度报告
+- [ ] Charles 定目标规模：50 / 500 / 5000 / 全量 12493
+- [ ] 估算存储：52 附件 / 10 项目 ≈ 52MB/项目 → 全量约 **650GB**（Gitea LFS 需评估）
+- [ ] 未解决：
+  - `fs-web-stream.jlc.com` 工程源下载路径（未测）
+  - `u.lceda.cn` EasyEDA 工程 JSON（需登录，v0.1 跳过）
+  - 增量更新：`updated_at` 变动检测 + LFS prune 策略
 
 ---
 
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..2e0a246
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,15 @@
+[project]
+name = "facere-dataset"
+version = "0.0.1"
+description = "Open hardware design dataset for Facere."
+requires-python = ">=3.11"
+dependencies = [
+    "httpx[http2]>=0.27",
+]
+
+[tool.ruff]
+line-length = 100
+target-version = "py311"
+
+[tool.uv]
+package = false
diff --git a/schemas/project.schema.json b/schemas/project.schema.json
new file mode 100644
index 0000000..5191e67
--- /dev/null
+++ b/schemas/project.schema.json
@@ -0,0 +1,95 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://git.deepknow.site/Facere/FacereDataset/schemas/project.schema.json",
+  "title": "FacereDataset Project",
+  "description": "统一项目记录。跨源（oshwhub / hackaday / github / ...）通用。",
+  "type": "object",
+  "required": [
+    "source",
+    "source_url",
+    "project_id",
+    "title",
+    "author",
+    "license",
+    "crawled_at",
+    "files"
+  ],
+  "properties": {
+    "source": {
+      "type": "string",
+      "description": "数据源标识，如 'oshwhub'、'hackaday'、'github'",
+      "enum": ["oshwhub", "hackaday", "github", "cern_ohr", "wikifactory", "other"]
+    },
+    "source_url": { "type": "string", "format": "uri" },
+    "project_id": {
+      "type": "string",
+      "description": "源站点内部 ID（oshwhub 用 uuid）"
+    },
+    "title": { "type": "string" },
+    "description_short": {
+      "type": "string",
+      "description": "简介（< 200 chars）"
+    },
+    "description_path": {
+      "type": "string",
+      "description": "长描述 markdown 相对本项目目录的路径，如 'description.md'"
+    },
+    "author": {
+      "type": "object",
+      "required": ["username"],
+      "properties": {
+        "username": { "type": "string" },
+        "display_name": { "type": "string" },
+        "user_id": { "type": "string" }
+      }
+    },
+    "license": {
+      "type": "string",
+      "description": "原始许可证字符串；下游做规范化映射。未知标 'unknown'"
+    },
+    "tags": {
+      "type": "array",
+      "items": { "type": "string" }
+    },
+    "created_at": { "type": "string", "format": "date-time" },
+    "updated_at": { "type": "string", "format": "date-time" },
+    "published_at": { "type": "string", "format": "date-time" },
+    "crawled_at": { "type": "string", "format": "date-time" },
+    "metrics": {
+      "type": "object",
+      "additionalProperties": true,
+      "description": "任意源站点统计：likes/stars/views/forks 等"
+    },
+    "cover": {
+      "type": "object",
+      "properties": {
+        "url": { "type": "string", "format": "uri" },
+        "path": { "type": "string", "description": "本地相对路径，如 'cover.png'" }
+      }
+    },
+    "files": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["name", "url"],
+        "properties": {
+          "name": { "type": "string" },
+          "url": { "type": "string", "format": "uri" },
+          "path": { "type": "string", "description": "本地相对路径，如 'files/xxx.pdf'。缺省表示只保留 URL" },
+          "size": { "type": "integer" },
+          "md5": { "type": "string" },
+          "sha256": { "type": "string" },
+          "ext": { "type": "string" },
+          "mime": { "type": "string" },
+          "original_id": { "type": "string", "description": "源站点内部文件 ID" }
+        }
+      }
+    },
+    "raw_fields": {
+      "type": "object",
+      "description": "不易规范化但想保留的源站原始字段（grade、download_count 等）",
+      "additionalProperties": true
+    }
+  },
+  "additionalProperties": false
+}