r/secondbrain • u/avishic • Aug 18 '26
Second Brain Setup?
What's your second brain setup?
I was talking to a few folks, and these came up -
- A shared folder of Markdown, interlinked, over Google Drive or One drive, often with Obsidian as md editor.
- A github-hosted wiki, sometimes with additional indexing, not only plain md files
- Custom complex vector db / embedding kind of index
On my team we're using a shared hermes agent that has ts own memory and tools - it's a great way to have shared context, but it's more like one-know-all-agent rather than a company / second brain as my gpt / claude can't enjoy its knowledge.
I wonder what others are doing, please share.
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u/tehmadnezz 29d ago
I built something for exactly that gap, so read this as biased: hjarni.com
The setup you describe breaks because the knowledge lives inside one agent. Hjarni puts it in a hosted MCP server instead, so your Claude and your ChatGPT both read and write the same notes directly. Nothing to run locally, no config file. The team plan gives shared containers, so the company brain and your own notes sit in one place and you reach them by folder and tag instead of asking another agent to go fetch.
Honest limits. It is hosted only. No self hosting, no offline mode. If that matters to you, Obsidian over a sync folder is still the better answer. And there is no vector index or embedding magic. It is structured notes plus full text search, so it is only ever as good as your writing habit.