Second brain repo adds Jev engineering and four other learning tracks
The author turned an 8-million-view second brain tutorial into a free site and repo with 109 pages of docs, 18 agent skills and five tracks including Jev engineering and agent harnesses.
My second brain article passed 8 million views. So I put the whole setup, the tools, the learning material and everything around it in one place. Free A repo and a site. What is in there: > 109 pages on the site > The guide: 10 sections and 65 pages, concept through troubleshooting > 5 tracks on top of it, 44 pages, 15 of them build guides with code that runs > 18 agent skills, 72 slash commands, 6 subagents > 5 Python scripts: graph export, link checker, vault stats, chat converter, site builder > A starter vault template with its own CLAUDE.md > 87 resources: 28 tools, 26 Obsidian plugins, 15 repos, 12 skills, papers and articles There is also a track for each of these: > Knowledge graphs > Jev engineering > Agent harnesses > Loop engineering > Eval engineering The Second Brain guide is a good starting point, and I'd recommend that beginners start there. If you're a more advanced LLM user, move on to the additional resources. I'm sure you'll find a lot of useful information there. The website and repository are constantly updated. New tooling shows up every week in this space. Repo: https://github.com/undefined-ui/second-brain-os Website: https://undefined-ui.github.io/second-brain-os/
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