A second brain in Obsidian, 179 skills driving it, and twenty agent seats reading and writing the same notes. One RTX 4070. No cluster, no enterprise seat licenses, no data center.
CLICK ANY BOX TO SEE THE SKILLS BEHIND IT
| LAYER | COUNT | ON DISK |
|---|---|---|
| Markdown notes | 2,426 | 137 folders |
| Installed skills | 179 | 78 categories |
| Second-brain OS | 41 | the largest single family |
| Agent seats | 20 | one bus, no seat owns the notes |
| Holographic facts | 3,662 | trust-scored, entity-resolved |
| Bus events / 7 days | 66 | Sun 2 → Fri 35 |
The whole thing is Markdown in a folder on my desktop. If the agent framework disappeared tomorrow, I would still have every decision, every rule, and every correction — in a format that opens anywhere.
That is the part I care about. The AI layer is replaceable. The notes are not. When the vendor bill came due, I did not lose a brain, I inherited a folder. Aiming a second brain at a rented model is the whole bet — and the parts of the stack that decide policy — the gates, the never-do lists, the stop orders — live in the notes where an agent can read them but not quietly edit them out of existence.