Obsidian and Pi
How my notes became less like storage and more like a working memory an agent can actually use.
Obsidian is where my long-term thinking lives. It is not polished like a public blog, and that is the point. It holds half-formed ideas, school notes, project context, preferences, decisions, and the small bits of personal operating system that are easy to forget but expensive to reconstruct.
Pi changes what that vault can do. A normal notes app stores knowledge. Pi can read it, follow the links, understand the surrounding project, and use it while actually doing work. That turns Obsidian from an archive into a working memory layer.
The setup feels simple on the surface: keep an index, keep project notes, keep a personal AI profile, and tell the agent to check the vault before guessing. But the effect is bigger than the mechanics. I do not have to re-explain my preferences every session. I can point Pi at the notes and let it rebuild context from something I control.
This matters most when work crosses boundaries. Coding is rarely just code. It touches design taste, school deadlines, writing style, project history, and random decisions from two weeks ago. Obsidian gives those pieces a place to live. Pi gives them a way to show up in the moment I need them.
I am still cautious about it. Memory can make an agent better, but it can also make it overconfident. Old notes can be wrong. A preference can become a cage. A vault can grow noisy if everything gets saved without judgment. The value is not in remembering everything; it is in remembering the right things and keeping them editable.
That is why I like the Obsidian and Pi combination. Obsidian keeps the source of truth local, visible, and human-readable. Pi makes that source of truth operational. I can inspect the memory, change it, delete it, or ask the agent to update it when a durable lesson appears.
The best version of this workflow does not feel like outsourcing my brain. It feels like giving my future self better handles. I still decide what matters. I still keep taste and judgment in the loop. Pi just helps the knowledge I already collected become useful at the speed of work.