A desktop OS for you and your AI.

◇ What it is

It's not a notes app.
It's an operating system for everything you know

The screen is a real desktop — a wallpaper, app icons, windows. Each icon is its own app, sandboxed, all working from one set of data that lives with you: knowledge management without someone else's cloud in the middle.

• Apps, not features

  The shell only hosts apps. Notes, Database, Files, Graph, a calendar, a code editor — add the ones you want, drop the rest, and update each on its own.

• Your data, your disk

  Every document is a plain file in a folder you own. Sync is optional and end-to-end encrypted — the relay only ever sees scrambled bytes. There's no account to sign up for.

• AI you can govern

  The shell sits between your apps and any AI. Use your own API key or a model that runs locally, and decide exactly what each app and agent is allowed to touch.

◇ A look inside

One set of objects.
A different app for each way of seeing it

Each app reads and writes the same vault, so a note you write here is a row there and a node in the graph — never a copy, never an export.

Every app, fully described — capabilities and screenshots →

◇ AI-native

You and your agents, working from one place

◇ How it works

A handful of decisions, kept everywhere

• 01

  Apps you choose, not features bundled in.

  Install Notes, Database, Files, Graph from us. Install third-party apps from the catalog or a URL. Uninstall what you don't use. The shell stays small.

• 02

  Your data, your disk.

  Every document is a file on your machine. Sync is optional and uses Yjs CRDTs. Export to standard formats anytime. No account required, ever.

• 03

  AI when you want it, never when you don't.

  The shell brokers every AI call. Bring your own provider key, or run the local model that ships with the shell. Per-app budgets cap runaway cost.

• 04

  Customise without polluting the shared workspace.

  Database views, dashboard layouts, shortcut bindings, theme — all personal by default. Explicit "share with team" elevates to org scope when you want it.

• 05

  A real app SDK.

  Sandboxed, capability-gated, with a stable contract. Build an app from inside Brainstorm with the Code app, and install it from a local package or a URL.

• 06

  Designed in the open.

  Every decision, trade-off and open question gets written down and argued through before it ships. The product is the result of those notes, not a marketing layer on top.

◇ Roadmap

Where it's headed

We build in the open — the plan and the open questions are all in the repo. Here's what's in the current build, what we're on now, and where it goes.

1. In the build

   The shell and twenty apps

   A sandboxed host with a capability ledger, the vault, and twenty first-party apps that all share one object space.

2. In the build

   Local data, encrypted sync

   Every document is a CRDT on your disk. Multi-device sync is optional and end-to-end encrypted — your keys never leave your devices.

3. Shipped

   The AI broker

   One path for every AI call — your key or a local model — with a record on every object and a budget on every app.

4. Out now

   Public beta

   A free, encrypted, multi-device core you can actually live in — available now for macOS, Windows, and Linux, with a one-click way to bring your existing notes across.

5. On it now

   Agents as teammates

   AI that has its own identity, its own permissions, and a history of what it did — an operating system for a team that runs on agents.

6. On the roadmap

   An app marketplace

   Build on the open SDK today, then discover, install, and publish third-party apps — each running in the same sandbox, under the same capability grants you control.