Switch brains.
Keep the memory.
MARUVI is a private AI OS. Your memory and your files live on your own machine, so moving to a better brain never means explaining yourself from scratch — and the more you use it, the more it knows how to do.
MARUVI 0.5.4 — on a Mac, one double-click installs it.
Python ships inside the zip, so there is nothing else to install. Unzip, run the installer once, and the hub opens in your browser. Brains run on your own AI accounts — Claude, ChatGPT, Gemini, or a local model — and usage counts against your own plan.
On Windows, if a warning appears
MARUVI never asks for administrator rights. The warnings come from Windows being careful with a new file from a maker it hasn't seen yet. Three things get you through.
- Before unzipping, right-click the zip → Properties → tick Unblock at the bottom → OK.
- Unzip to a short path such as
C:\ai_hub. NotProgram Files— Windows guards that folder. Desktop and Documents are often synced by OneDrive, which slows the install. - If a blue Windows protected your PC box appears when you run
install.bat: click More info, then Run anyway.
Illustration — the real window may look slightly different.
“An administrator has blocked this app” is different. On a company laptop it is the company's security policy and cannot be bypassed — please use a personal PC. On a personal PC it is Windows 11 Smart App Control; the install guide inside the zip shows how to switch it off.
On a Mac: unzip, drag MARUVI into Applications and double-click it. The first time only, macOS says it cannot open the app — click Done, then go to System Settings → Privacy & Security, scroll down and click Open Anyway. After that it is one double-click. Apple silicon (M1 or later) only.
Once it is installed, you can open the same hub from your phone. Turn it on in settings, scan the QR code that appears, and it is there. It is not published to the internet — the link works only between devices you own, and it needs Tailscale, a separate free app. It stays off until you turn it on.
By downloading you accept the terms of use: run it on your own machines, keep whatever you make with it, and send people the maruvi.ai address rather than the file itself.
Your memory shouldn't belong to one brain.
Every assistant remembers you now. The difference is where that memory is kept. When it lives inside one company's product, moving to a better brain means starting the explanation over. MARUVI keeps it as files on your own machine — so the memory is the part that stays, and the brain is the part you swap.
You change brains. You don't change your notes.
The longer you use it, the more it can do.
It remembers the facts
Names, decisions, numbers, the shape of the work. Written down as files — not held in a session that ends when you close the window.
It writes down how you work
How a task should be done gets saved as a document it reads the next time. Like a new hire who writes their own manual as they learn the job.
It can build what is missing
Ask for a tool it doesn't have and it can write one. It does not always work. But on the days it does, the product you keep is no longer the product you installed.
Three things we will not build.
- ✕Locking your memory in. Delete MARUVI tomorrow and what it wrote down is still plain files you can open with anything.
- ✕Keeping your knowledge on our servers — not even as a convenience feature. MARUVI runs no server that stores your files. Anything that travels out goes because you connected it, and it leaves a receipt.
- ✕Hiding which brain is answering. MARUVI is set up for a cloud brain out of the box — on your own account. Which one is answering is always on screen, and you can switch it at any time.
MARU is the open center of a house.
Maru is the raised wooden floor at the heart of a Korean hanok — the open space that connects the rooms, greets the guest, and holds the decisions of the household. MARUVI is not where knowledge is made. It is where knowledge sits, and where the brains come and go.