Video: "LIVE: Hermes Agent + Aion UI + Obsidian + Omi" by Julian Goldie on YouTube.
The core problem this solves
Every AI agent session currently starts blank. You open Hermes, Claude Code or anything else and the agent has no idea who you are, what projects you're running, or what you told it last Tuesday. You end up re-explaining the same context over and over. The Hermes + Omi + Obsidian stack addresses that directly.
The idea is straightforward: build a persistent memory layer outside the AI tool itself. Obsidian — a local note-taking app — acts as the vault. Hermes is pointed at that vault when it starts, so it reads your stored context before tackling any task. Omi is the optional (and paid) hardware layer that makes the memory capture automatic, rather than manual.
What each tool does
Omi is a small wearable — a pendant or clip — that uses your microphone and screen context to passively record conversations, decisions and activities throughout the day. It converts those into structured memories and syncs them to your Obsidian vault automatically. If you have a client call, Omi logs it. If you make a decision about a project, Omi notes it. You don't have to write anything down.
Obsidian sits in the middle. It's a free, local note-taking tool that stores everything in plain text files on your own machine. Nothing goes to a cloud service you don't control. Hermes can read the vault directly, treating each note as a piece of context to draw on. That means your agent knows about your active clients, your brand voice, your recurring tasks, and any decisions you've logged.
Aion UI is the graphical front end for Hermes Agent. Rather than running commands in a terminal, you manage sessions, memory, skills and model settings through a proper interface. For teams or business owners who don't want to live in a command prompt, Aion makes the whole stack accessible.
What you actually get out of it
In practice, the difference is that Hermes stops being a fresh start every session. A client SEO brief becomes part of the vault. Your preferred content structure goes in as a skill. Notes from a strategy call get pulled in automatically by Omi. When you open Hermes the next morning and say "write the landing page for Acme Ltd", it already knows the brief, the tone, and the deadline.
That said, the quality of the output still depends on the quality of what's in the vault. Messy notes, incomplete context, or Omi recordings that weren't properly tagged will produce agents that confidently use the wrong information. Good memory infrastructure is still discipline infrastructure — just automated.
What's overstated
Omi is a consumer device at a consumer price point. The memory capture is genuinely useful but it's early technology — accuracy varies, especially in noisy environments, and setup takes more than an afternoon the first time. If you're evaluating this stack, start with Obsidian and Hermes alone first. The manual memory vault (you write your own notes into Obsidian) gives you 80% of the benefit immediately and costs nothing beyond the time to set it up.
The Aion UI also adds a layer of moving parts. When Hermes updates — and it updates frequently — the Aion interface occasionally lags. Worth checking both are on compatible versions before you commit to the stack in a production environment.
Where this connects to NordSys
Setting up Hermes with a working Obsidian memory vault — and keeping that running as the tools update — is exactly the kind of technical groundwork our AI Agents service handles. We configure the agent, build the initial vault structure, connect any skills or automations your business uses, and maintain it on an ongoing basis so the setup doesn't quietly break between your sessions.
See our AI Agents service →