I turned my Obsidian vault into an AI-powered work OS — open source, free

Takeaways

• ObsidianOS (benoror/obsidianos_work) is an open-source (MIT) Obsidian vault with agent skills run via slash commands — local markdown, no SaaS lock-in.
• Key skills: /meeting (Calendar → structured note → wrap with transcript + wikilinks + tasks), /recap this week (vault + Gmail + Calendar), /followup-todos (action items as Tasks checkboxes).
• Agent-agnostic — works with Cursor, Claude Code, OpenCode, or any MCP client; skills are markdown workflow descriptions.
• Targets founders/builders drowning in meetings, email, and task lists; data stays on-machine in plain files you own.
• Ben uses it daily managing an engineering team (standups, 1:1s, product reviews, tech briefs).
• Indie Hackers post is the public launch narrative for the same system documented in this vault’s AGENTS.md and skills.

Notes

Primary source for Ben’s own ObsidianOS product thesis — this wiki ingest and vault agent architecture are direct implementations of the pattern described here.

Open questions

• Which ObsidianOS skills should be promoted first for external adopters vs kept as personal-vault-only workflows?