[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"pack-detail-ai-second-brain-zh":3,"seo:pack:ai-second-brain:zh":68},{"code":4,"message":5,"data":6},200,"操作成功",{"pack":7},{"slug":8,"icon":9,"tone":10,"status":11,"status_label":12,"title":13,"description":14,"items":15,"install_cmd":67},"ai-second-brain","🧬","#BE185D","stable","稳定","AI 第二大脑","Logseq 笔记 + Khoj 检索 + Karakeep \u002F Linkwarden 收藏 + AFFiNE 工作区 + MarkItDown 入库器 — 看过的一切汇进可问答的图谱。",[16,28,38,45,52,59],{"id":17,"uuid":18,"slug":19,"title":20,"description":21,"author_name":22,"view_count":23,"vote_count":24,"lang_type":25,"type":26,"type_label":27},1112,"42404795-364b-11f1-9bc6-00163e2b0d79","logseq-privacy-first-knowledge-management-platform-42404795","Logseq — Privacy-First Knowledge Management Platform","Logseq is a privacy-first, open-source platform for knowledge management and collaboration. Outliner-based with bidirectional links, block references, queries, and graph visualization. Local-first with optional sync. The open-source alternative to Roam Research.","Script Depot",388,0,"en","script","Script",{"id":29,"uuid":30,"slug":31,"title":32,"description":33,"author_name":34,"view_count":35,"vote_count":24,"lang_type":25,"type":36,"type_label":37},323,"4cbd3b7b-5251-4a16-a4ef-d7c1f9600d52","khoj-your-ai-second-brain-4cbd3b7b","Khoj — Your AI Second Brain","Khoj is a personal AI app for chat, search, and knowledge management. 33.8K+ stars. Multi-LLM, docs, Obsidian, WhatsApp, custom agents. AGPL-3.0.","AI Open Source",227,"skill","Skill",{"id":39,"uuid":40,"slug":41,"title":42,"description":43,"author_name":34,"view_count":44,"vote_count":24,"lang_type":25,"type":36,"type_label":37},329,"ed24c544-0cc7-44b2-9cad-6acda85a2040","karakeep-ai-powered-bookmark-manager-ed24c544","Karakeep — AI-Powered Bookmark Manager","Karakeep (formerly Hoarder) is a self-hosted bookmark manager with AI tagging and full-text search. 24.4K+ stars. Browser extensions, mobile apps. AGPL-3.0.",228,{"id":46,"uuid":47,"slug":48,"title":49,"description":50,"author_name":22,"view_count":51,"vote_count":24,"lang_type":25,"type":36,"type_label":37},907,"fc714a8d-349f-11f1-9bc6-00163e2b0d79","linkwarden-self-hosted-collaborative-bookmark-manager-fc714a8d","Linkwarden — Self-Hosted Collaborative Bookmark Manager","Linkwarden is an open-source bookmark manager that saves, organizes, and preserves web pages with full-page screenshots, PDF snapshots, and collaborative collections.",285,{"id":53,"uuid":54,"slug":55,"title":56,"description":57,"author_name":34,"view_count":58,"vote_count":24,"lang_type":25,"type":36,"type_label":37},466,"a517c512-e1ff-4814-98f6-65dd2757616d","affine-open-source-notion-alternative-a517c512","AFFiNE — Open-Source Notion Alternative","Docs, whiteboards, and databases in one privacy-first workspace. Local-first with real-time collaboration. 66K+ GitHub stars.",272,{"id":60,"uuid":61,"slug":62,"title":63,"description":64,"author_name":65,"view_count":66,"vote_count":24,"lang_type":25,"type":36,"type_label":37},678,"6fdc90c2-bede-4d3a-98d7-faf751dfb41f","markitdown-convert-any-file-markdown-llms-6fdc90c2","MarkItDown — Convert Any File to Markdown for LLMs","Python library by Microsoft that converts PDF, DOCX, PPTX, XLSX, images, audio, and HTML to clean Markdown. Perfect for feeding documents into LLM context windows. 8,000+ stars.","Microsoft AI",353,"tokrepo install pack\u002Fai-second-brain",{"pageType":69,"pageKey":8,"locale":70,"title":71,"metaDescription":72,"h1":13,"tldr":73,"bodyMarkdown":74,"faq":75,"schema":91,"internalLinks":101,"citations":114,"wordCount":127,"generatedAt":128},"pack","zh","AI 第二大脑：Logseq + Khoj + Karakeep 自建套装","自建个人知识图谱：Logseq 笔记 + Khoj AI 搜索 + Karakeep \u002F Linkwarden 收藏 + AFFiNE 工作区 + MarkItDown 入库。TokRepo 一条命令装齐。","六个自建工具把你看过的一切汇成可问答的知识图谱：笔记 \u002F AI 搜索 \u002F 收藏 \u002F 工作区 \u002F Markdown 入库器。","## 这个 pack 装了什么\n\n这个包收齐了六个自建工具，组成可以用 AI 查询的个人知识图谱 —— 就是 Tiago Forte 推广的「第二大脑」模式，加上让大脑真正 *有用* 而不是「保存文章坟场」的 AI 搜索层。\n\n| # | 资产 | 角色 | 解决什么 |\n|---|---|---|---|\n| 1 | Logseq | 笔记 | 本地优先的大纲编辑器，双向链接 |\n| 2 | Khoj | AI 搜索 | 语义搜索 + 跨笔记和文档对话 |\n| 3 | Karakeep | 收藏 | 自建 Pocket 替代品，AI 自动打标签 |\n| 4 | Linkwarden | 收藏 | 集合式收藏，整页归档 |\n| 5 | AFFiNE | 工作区 | Notion 式块编辑器，带白板模式 |\n| 6 | MarkItDown | 入库 | 微软出的工具，PDF \u002F Word \u002F PPT 转干净 Markdown |\n\nKarakeep 和 Linkwarden 分工是故意的：Karakeep 优化 AI 标签和快速捕捉，Linkwarden 优化整页归档（Wayback 式快照，链接失效后知识不丢）。多数人两个一起跑，Karakeep 接日常洪流，Linkwarden 归档正式参考。\n\n## 为什么现在要做第二大脑\n\n三个变化让这套比 2020 时代「只有 Notion」的方案更有用：\n\n- **AI 搜索让笔记值得留**。前 LLM 时代，知识库只在你记得它存在 + 能造好查询词时有用。Khoj 的语义搜索让你能问「那篇 RAG 上下文窗口的论文里关于切片说了什么」，即使你存的文件名是 `random_pdf_3.pdf` 也能命中。\n- **本地优先意味着隐私不是 tradeoff**。Logseq 把图谱存成你掌控的文件夹里的纯 Markdown。Khoj 跑在本地（接 Ollama 之类）—— 私人笔记一字不出机器。Notion AI 每次查询都送到 OpenAI；这套不会。\n- **MarkItDown 堵上导入缺口**。第二大脑最难的一步永远是把输入弄进去。MarkItDown 把 PDF \u002F Word \u002F PPT 甚至 YouTube 转写转成干净 Markdown，Logseq 和 Khoj 原生索引。\n\n## 一条命令装齐\n\n```bash\n# 把整个 pack 装进当前项目\ntokrepo install pack\u002Fai-second-brain\n\n# 或只装单个\ntokrepo install logseq\ntokrepo install khoj\n```\n\nTokRepo CLI 给服务端工具配 Docker Compose（Khoj \u002F Karakeep \u002F Linkwarden \u002F AFFiNE），把 Logseq 配置丢进现有图谱目录，把 MarkItDown 装成可 pipe 的 CLI。`~\u002Fbrain\u002F` 目录成为所有东西的标准挂载点。\n\n## 常见踩坑\n\n- **把 Logseq 页面当文件**。在 app 外重命名页面会断双向链接 —— 入向引用还指着旧名字。用 app 内重命名或 Logseq 插件重构；永远别直接 `mv` markdown 文件。\n- **Khoj 索引整盘**。Khoj 默认会索引你指给它的所有东西。别让它扫 ~\u002FDownloads 或工作 git 仓库 —— 索引一个策展的 `~\u002Fbrain\u002F`，否则结果嘈杂、重索引慢。\n- **Karakeep 没有标签策略**。AI 自动打标签很好但跨会话不一致。定 10-20 个稳定顶层 tag（`#paper` \u002F `#tutorial` \u002F `#tool` \u002F `#person`），让 AI 填子标签。不然一年后会有 400 个一次性标签。\n- **Linkwarden 每个链接都全页归档**。整页归档真吃磁盘（每份 5-50 MB）。只对真想超过链接腐烂期的集合开归档 —— 日常新闻链接不需要。\n- **AFFiNE 当唯一写作面**。AFFiNE 多媒体和白板很好但纯文本导出粗糙。要后续可查询的文字密集工作，在 Logseq 写（原生 Markdown），再把 Logseq 页面嵌进 AFFiNE 排版展示。\n\n## 推荐工作流\n\n典型的知识捕捉流是这样。浏览器读到一篇文章，Karakeep 扩展抓走，AI 打 `#paper #ml`。每周一次 triage Karakeep —— 值得留的提到 Linkwarden 永久归档。重要 PDF 走 MarkItDown 进 `~\u002Fbrain\u002Fclippings\u002F`。日记和会议纪要在 Logseq 里 `[[人名]]` `[[项目]]` 标着。Khoj 整套夜间索引。\n\n要回想时不用记位置。问 Khoj「一月那篇论文里关于 MoE 路由的论证是什么」，它把对的笔记加源 PDF 找出来。",[76,79,82,85,88],{"q":77,"a":78},"整套全跑下来收费吗？","不收。六个工具都是宽松或 AGPL 开源；自建。Khoj 在线版收费图方便，但核心引擎接 Ollama 或本地 LLM 免费跑。计算需求适中 —— Logseq 纯客户端，Khoj 索引器树莓派能跑，剩下都是轻量 Docker 容器。存储是变量：Linkwarden 全页归档增长最快。",{"q":80,"a":81},"比 Notion AI \u002F Mem 怎么样？","Notion AI 起步更快、移动 app 更滑，但你写的所有东西都送 OpenAI 跑 AI 功能、送 Notion 服务器存储。这个 pack 给你 80% AI 能力的自建版，零数据离网 —— 代价是自己跑 Docker 容器。Mem 精神接近（AI 原生笔记）但闭源、仅 SaaS。方便压隐私选托管；笔记里有敏感东西选这个 pack。",{"q":83,"a":84},"Claude Code \u002F Cursor 能用吗？","能。Khoj 有 MCP 服务器和 OpenAI 兼容 API，Claude Code 可以把第二大脑当工具查 —— 想让 agent 用你过往研究而不是重新 Google 时很有用。Logseq 有社区 MCP 让 agent 直接读写图谱。TokRepo 资产页按工具单独写好接线。",{"q":86,"a":87},"Karakeep 跟 Linkwarden 区别？","Karakeep 捕捉优先，AI 打标签强、浏览器扩展快 —— 适合每天顺手存的 50 个链接。Linkwarden 归档优先，集合树 + 整页快照 —— 适合策展过、要超过原站的集合。功能重合，但推荐工作流是 Karakeep 当收件箱、Linkwarden 当正式参考。",{"q":89,"a":90},"运维这套的坑？","备份。多数人发现备份策略坏掉是在需要它的时候 —— Logseq 图谱是本地文件（备份目录），Khoj 自带 SQLite + 向量索引（快照数据目录），Karakeep 和 Linkwarden 各跑一个 Postgres。一个夜间任务把四个全快照、复制到 S3 或 B2、每季测一次恢复。pack 自带 `backup.sh` 模板。",{"@context":92,"@type":93,"name":94,"description":95,"numberOfItems":96,"publisher":97},"https:\u002F\u002Fschema.org","CollectionPage","AI Second Brain","Self-hosted personal knowledge stack: Logseq notes, Khoj AI search, Karakeep + Linkwarden bookmarks, AFFiNE workspace, MarkItDown.",6,{"@type":98,"name":99,"url":100},"Organization","TokRepo","https:\u002F\u002Ftokrepo.com",[102,106,110],{"url":103,"anchor":104,"reason":105},"\u002Fzh\u002Fpacks\u002Fdocument-ai-pipeline","文档 AI 流水线","把 PDF \u002F Office 文档入库进大脑",{"url":107,"anchor":108,"reason":109},"\u002Fzh\u002Fpacks\u002Fself-hosted-productivity","自建办公套件","Logseq \u002F AFFiNE 所属的更大套件",{"url":111,"anchor":112,"reason":113},"\u002Fzh\u002Fpacks\u002Frag-pipelines","RAG 流水线","查询第二大脑的检索层",[115,119,123],{"claim":116,"source_name":117,"source_url":118},"Logseq is an open-source, privacy-first knowledge graph with bidirectional links and outline editing","logseq\u002Flogseq","https:\u002F\u002Fgithub.com\u002Flogseq\u002Flogseq",{"claim":120,"source_name":121,"source_url":122},"Khoj provides personal AI search and chat across your notes, documents, and online sources","khoj-ai\u002Fkhoj","https:\u002F\u002Fgithub.com\u002Fkhoj-ai\u002Fkhoj",{"claim":124,"source_name":125,"source_url":126},"Karakeep (formerly Hoarder) is a self-hostable bookmark manager with AI tagging and full-text search","karakeep-app\u002Fkarakeep","https:\u002F\u002Fgithub.com\u002Fkarakeep-app\u002Fkarakeep",518,"2026-05-02T15:00:00Z"]