Blog
The team second brain
On real-time collaboration, local-first markdown, open source, and giving your AI a second brain.
MCP security risks come from one combination, and a team's notes supply two parts of it
Is MCP safe to use? It is as safe as the servers you connect. How to check one against the lethal trifecta, and why a team's shared notes change the answer.
Oct 18, 2026 · 7 min readWhere is claude_desktop_config.json? The path on Windows, macOS and Linux
Where claude_desktop_config.json lives on Windows, macOS and Linux, why Store installs on Windows read a second copy, and how to fix a server that never loads.
Oct 16, 2026 · 6 min readKarpathy's LLM wiki is a second brain for one. Here is what a team adds
What Andrej Karpathy's LLM wiki is, quoted from his post and gist, how it differs from a second brain, and what a team needs to run one.
Oct 16, 2026 · 9 min readA second brain vs a knowledge base: who the note is for, and where it gets lost in between
Second brain vs knowledge base: one is notes for the writer, one is pages for a reader. Why teams buy the wrong one, and how to make promotion a move.
Oct 16, 2026 · 8 min readRAG vs a second brain: why most team notes need links, not a vector index
A second brain is the notes; RAG is one way to feed them to a model. When search and links are enough, when RAG pays off, and where each falls short.
Oct 16, 2026 · 9 min readIs Obsidian open source? No, and the closed part that matters is the server
Obsidian is closed source but free, and your notes stay markdown files. What is open, why it is closed, and when that matters for a team. Checked 16 October 2026.
Oct 16, 2026 · 7 min readSecond brain in Notion: how to build one that still works outside Notion
Build a second brain in Notion in an afternoon: PARA as pages, one database for projects, and why pages export, share and feed an AI better than relations.
Oct 15, 2026 · 8 min readClaude and Apple Notes: connecting takes a minute, a bad rewrite is permanent
How to connect Claude to Apple Notes with Anthropic's extension, what it does to a note when it writes, and why an edited note has no version to restore.
Oct 14, 2026 · 6 min readKnowledge base for startups: the five pages to write before your tenth hire
A knowledge base for a startup: the five pages to write before the tenth hire, how to lay them out, what founders keep private, and what each tool costs later.
Oct 14, 2026 · 8 min readBuild a second brain in Obsidian that more than Obsidian can read
How to build a second brain in Obsidian: folders, properties, links, daily notes and plugins, set up so an AI or a teammate can read the vault too.
Oct 14, 2026 · 7 min readBest documentation tool for teams: who edits it, and where the files live
Eight documentation tools by who can edit and where the text lives when you leave: Docusaurus, MkDocs, Mintlify, GitBook, Confluence, Notion, Baalda.
Oct 14, 2026 · 9 min readAI second brain: the three things it means, and which one a team can share
An AI second brain is notes an assistant reads and writes. Assistant memory, AI notes apps and MCP files, compared on where notes live and who sees them.
Oct 13, 2026 · 7 min readTransfer ChatGPT memory to Claude, and keep the work the import leaves behind
Claude's memory import moves what ChatGPT knows about you in a minute. Your chats, Project files and team knowledge stay behind. What to do with those.
Oct 13, 2026 · 6 min readStart your team’s brain
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